4. That's a difficult one to answer. What exactly are your requirements? It sounds like your are looking for a HTPC with a lot of storage. That is a common use for the microserver but you would need to fit a better graphics card. The built-in one is no good for media playback.
@IT Troll thanks for answering all my listed questions.
requirements non
The reason I thought about it was because micro servers have popped up a lot around the forums and I wanted to know the benefits over a pc.
I did think of a cheap media storage device which can stream movies music and I could watch them on my devices. but that was only £40-£50 inc large storage. but im assuming I will be able to do much more with this.
2. For the best experience you would need something that could run client connection software. Typically this would be a small form factor computer, tablet or smart phone. However you could setup remote desktop access which works in a browser. So as long as your TV has a reasonable browser this should work.
Any other ways ?
I don't really want to invest in this and then still need to buy pcs for other areas of the house to use it.
4. Within reason. You would need to setup your router for external access. Then the scope of what you can do will be dependent on your broadband upload speed.
basic adsl 11mb download 0.6 upload
My points
1. I only use a desktop pc, I no longer bother with using tv

unless I need to watch something on a larger screen, so im not sure if it would be a benefit to me, I store all my files on my pc and having no issues. so it would just be a storage device for me, at least to start with.
2. Rest of the family (parents. brother, sister) are not computer savvy, but have there own laptops. tabs. nothing connected to the tv, no one else would really care if it was in place or not, but like with everything they would start using it I assume.
3. I was thinking if there was home hub, I could have all my data connected in the house, to stream movie's and music, the same as us would with netflix, spotify, and have it as backup drive for my data. I'm sure there must be other uses.
connect to it via my laptop even if there was no pc device in place
4. I have 4 nephews who come round a lot and can cause a lot of damage.
My issue
My router is next to my pc and thats were I would like to keep the micro server if I got one (safe out of the way).
1. Doing this how could I stream to the TV's in my house without buying more PCs ?
2. How could I connect other devices to it, i'm assuming it has no wifi and I would need a lot of cable to connect it via cable or get it to areas of the house with low wifi signal.
3. more cables more mess
My questions
1. Could I justify the cost (it would be just storage for now) ?
2. We will be renovating the house soon, would be worth getting now or after the renovation (2-3 months time).
3. what do you guys use it for
4. if I got a MS what would be the min upgrade I should get, the basic cpu must be quite slow. would i need a graphics card to stream ?