Just finished writing a very brief review of the TPU gel case there, so here you go 
http://www.neowin.net/forum/topic/1071937-htc-one-s/page__st__15__p__594952971#entry594952971
http://www.neowin.net/forum/topic/1071937-htc-one-s/page__st__15__p__594952971#entry594952971
Firstly, still no sign of the Nillkin Super Shield caseGoing to send Nillkin an email on Monday if there is still no sign, to see what is happening.
So, I decided to buy another case in the meantime till the Nillkin cases arrives, if at all
Ordered a transparent black TPU gel case for £2.95 (including the delivery price) on Thursday and it arrived today and first impressions are, not bad considering the price.
The reason I am changing from the Tough case is due to the thickness it adds (more noticeable in the pockets), increase in weight and completely ruining/hiding the sleek & minimal design/look of the One S and the gel case seemed to be the best alternative to the Tough case in order to keep all sides protected but at the same time not increasing the size and weight by a considerable amount. Also, the silicone part of the Tough case gathered a lot of dust around the front edges of the screen area.
Now onto the mini review of the TPU gel case.
There are cut-outs for the bottom & top mic, the 3.5mm audio jack, the speaker, the camera and the USB port.
The case is very easy to fit on, a nice fit, not too tight and not loose at all once fitted. The case is relatively flexible, not as flexible as the silicone part of the Tough Case. It isn't as easy of a task to remove the case though, but still quicker and easier than removing the Tough case.
The colour suits the black MAO One S very well, was going to order the pitch black one but then thought that it would be too glossy and look a bit out of the place with my S, as the black model isn't completely black, it has more of a charcoal colour to it. With the transparent black case on, the back of the device looks pretty much the same regarding the colour in all different types of lighting conditions and you can still make out certain things i.e. the beats audio logo and the engraved HTC logo on the back (unfortunately the photos don't really reflect the true colour and doesn't capture the partially see through look
The case does look rather cheap overall, especially for the sides, you can see some form of stitching (you will see what I mean in some of the photos) and the glossy/shiny look doesn't help at all.
But the minimal/sleek design for the front of the S still remains in some ways. Very little bulk is added, maybe just over 1mm to the back of the S, which means that the camera lens is also below the surface now, this is the main reason I want a case as well, as the camera sticks out from the rest of the back by just less than a mm or so, thus more prone to getting scratches on the lens.
The gel case covers the edges on the front and adds a very tiny amount on to the front so that there is a a raised edge for when the mobile is placed flat down on a surface to stop the screen touching the desk surface.
The power/lock button is very easy to push, a very light push is all that is required, this isn't really a good thing IMO though, as it means that when the mobile is in your pockets (tight trousers etc.) it could very easily keep turning the screen off and on or/and even the mobile off, as for the volume buttons, they are harder to press with the gel case on. It isn't very easy to tell where the buttons are (when not looking at them e.g. in the dark) as they aren't raised above the rest of the case, the lock/power button has a tiny indentation around the button and both button areas feel different to the rest of the gel case, more of a "hard" plastic feel.
I may have to do a little modding to these parts sometime soon
It is more comfortable to hold the S with the gel case on, however, it does feel a lot cheaper and not as nice to touch as the ceramic back and the Tough case felt better to touch as well whilst not feeling cheap. Finger prints are shown, however, they are only noticeable when you look at the case from certain angles in very bright light. The case also provides more grip.
As for protection/durability, I would say that the case would do a good job protecting the mobile from normal drops and the standard scratches etc. however, a drop onto solid concrete etc. from a good height could damage the mobile i.e. crack the screen as their isn't enough thickness to the case like there is with the Tough case and there would be no shock absorption either. But for daily use, I would say it is perfectly fine.
Hard to say how this will last in the long run regarding wear & tear, if you're careful enough with it and put it in a pocket with nothing else, it should be just fine for a good while I would imagine. Saying that though, the case only costs about £3, so you won't really be breaking the bank buying a new one every couple of months
Apart from the cheap looks (largely due to the stitching look on the sides and the glossy finish) and the power/lock button being too easy to activate and lastly the volume buttons being too hard to activate, there isn't really much wrong with this case at all, it does the job for £3
, was going to order it as well, but wanted to get something that would arrive a bit quicker, just as a temporary case till the nillkin case showed up, but if nothing happens with this nillkin in the next week I am going to order that or the Rock case.
and then the chipping issue worries me still especially if I where to accidentally drop it, so no other option really 
Will see if i got any when it comes back on...
So not many phones will have the chip for a while (apart from top end ones).
