TheVoice, which Samsung all-in-one did you have? hope it wasnt the HT-5500.
It was the Samsung HT-TZ325R with the tallboy speakers, but we sell the newer models where I work and aside from aesthetic changes, they're still much the same. Very basic, minimal functionality, lots and lots of cheap plastic. My Samsung system cost me a bit under £210 at the time and I was very disappointed with it, everything was very flimsy, very lightweight and didn't look or feel any better than the similar systems costing half the price.
In addition to the AnyNet issues I mentioned, the built-in fan was noisy (and useless), it would often fail to 'connect' to my TV or PS3 properly which meant switching it off and on again and then switching to the HDMI input on the TV in the right order. Even simple things were annoying; it was slow to start playing discs, slow to seek/navigate DVDs and leaving it on pause for more than a minute would cause the unit to stop playback completely (especially annoying when playing stuff via USB). Did a poor job of upmixing stereo sources into 5.1 too, whereas my Onkyo manages some quite convincing and impressive effects.
I'm not a Samsung hater, I have plenty of other Samsung stuff, but I'd never ever recommend their home theatre kits when there's much better stuff out there for the same sort of money. I understand you want something that looks nice and is small and compact, but when you actually see one of these kits in person you'll realise how cheap and tacky they do look. The Onkyo receiver I have is a bit of a big beast compared to the Samsung I had, but frankly it says a lot about the quality of the Samsung when they can fit an optical drive
and all the usual audio receiver stuff, and still have plenty of empty space in there.
If you do get one I genuinely do hope you're happy with it, but don't be disillusioned into thinking that it's going to be anything special, despite the rather high asking price. It's not £270 worth of speaker system, by any means.