
I finally received my Nexus 7 yesterday, after about two weeks of trying
 to find one - they sold out really quickly here in the UK. I've used it
 for a little over a day and thought I'd share some first impressions on
 what it's like to use the tablet in an everyday environment.
For a seven inch, £200 tablet, the Nexus 7 is actually very well built. I say this because there are a lot of £200 tablets out there and most of them are poor. There's no creaking around the panels of the device, and the rubberised 'Steve Mcqueen 1960s driving gloves' back feels very good in the hand, and increases your grip on the Nexus 7. There's also a very attractive metal rim around the bezel area of the device, which adds a nice touch of quality to this relatively cheap tablet.

In my opinion, the seven inch form factor is brilliant; I prefer this to
 the larger nine or ten inch tablet offerings such as the iPad or 
Motorola Xoom, as well as Samsung's larger Galaxy Tabs. For me, a ten 
inch tablet is getting dangerously close to my 13 inch Macbook Pro in 
terms of size, and the whole point of me getting a tablet was so that I 
wouldn't have to lug my Macbook around everywhere. Similarly, I didn't 
want to have to stare at my phone screen for some on-the-fly tasks. The 
Nexus 7's 800x1280 IPS display is simply beautiful, and the high 
resolution on a relatively small size screen makes everything super 
crisp and clear, making this an ideal device for tasks that require a 
lot of reading, such as heavy web browsing or book reading. Hell, you 
could even create and work on full office documents on this thing - the 
screen's that good. 
Without doubt though, the best thing about this size is that you can operate it one handed, and type with two thumbs as you would on a smartphone. It's also extremely light and portable, and even fits in the back pocket of your jeans.
 
The Nexus 7 ships with the latest version of Android, 4.1 Jelly Bean, 
which isn't really a totally new version but more of an evolution of Ice
 Cream Sandwich. While it may look pretty similar to the previous 
version, it performs very differently. Google 'declared war on lag' with
 something called Project Butter (they do know how to name 'em!) which 
makes a huge improvement to the overall performance of the operating 
system. While it doesn't really feel ridiculously faster than Ice Cream 
Sandwich, it's the consistency that Jelly Bean brings that really 
impresses - the transition smoothness between apps is, I'd say, on iOS 
levels of responsiveness. Also, I've noticed that the actual touch 
response is better, but this could be something to do with the display 
rather than the operating system. 

A lot of developers are also optimizing their apps specifically for the 
Nexus 7, which means that some of your favorite apps from your 
smartphone will look just as good on your tablet. 

One of my favorite features of Jelly Bean is the new notification style -
 the bar itself has been refined and looks better in my opinion, and you
 can perform actions on each notification by swiping down on it with two
 fingers. This makes things just that little bit quicker and more 
convenient. 
I've also noticed no issues with performance; the Nexus 7's quad core Tegra 3 processor and 1GB of RAM handle things beautifully.
Right now, after only a day, I'm loving the Nexus 7. It's fast, 
light, beautiful, and has a terrific operating system with a ton of 
excellent features. The range of apps is surprisingly good, and the fact
 that the device was designed as a kind of portal to the Google Play 
Store 'ecosystem' makes it really feel like it's worth something. Oh, 
and the best thing? You get all this for only £200.