In hindsight this review reflects badly on the phone, which it shouldn't. It was mainly to draw awareness to people who aren't so tech savvy, up to date with the times.
A few extra things I would like to point out:
I used the phone for two days, it was running Ice Cream Sandwich, android 4.0 I did not experience any of the 'homescreen bug' issue everyone was talking about, however I am not sure if it was ever officially fixed until the Jelly Bean update, android 4.1
Now, all the new phones that have been equipped with the older Snapdragon S3 Scorpion processor can not be upgraded to Jelly Bean! (Yet). The OTA updates are not available, and HTC are yet to release a downloadable firmware to your computer. However with the numbers of these handsets ever increasing, particularly in countries other than USA, HTC ought to get their act together and make it available for the S3 Scorpion version too. But don't buy this phone banking on getting the Jelly Bean update (unless of course you get a z520e model), as it may still be riddled with the homescreen bug that many users giving it 1 star reviews on here are talking about.
If you are thinking "Oh I will just root the device and load on a custom Jelly Bean ROM", I am afraid think again. At current there is no root, and no way to unlock the bootloader for the S3 Scorpion equipped phones. It is by no means impossible, and will happen in months to come. But the reason is when the phone first came out there were only the S4 Krait versions available. So all the friendly developers set about unlocking the bootloader and getting root on them, and there is already a host of custom ROMs available, including an official Cyanogenmod 10 release. Consequently however they didn't fancy going to the effort of 'redoing' all their work for the new S3 Scorpion versions, and not only is rooting and unlocking the bootloader different, the ROMs will be completely different due to the difference in hardware, ROMs will not be cross compatible, and hence completely new custom ROMs would have to be compiled by the friendly developers to work on S3 Scorpion phones.
For those of you who don't have a clue what I am talking about, be it in this comment, or in my original review post, then I highly recommend the phone. Despite it having the inferior hardware it still scored a solid 4000 on Quadrant, and 9000 on Antutu. It is no slouch by any means, just not fast enough to keep up with the phones of late 2012 (which is what is should have been).
The screen is gorgeous despite not being HD. If you are worried about the PPI (pixels per inch) of 256 then think of it this way. Your 1080p 32inch TV only has a PPI of 81! And the latest 55inch 4K resolution TVs costing thousands only have a PPI of 80! Personally I think TV screens have a long way to go before the catch up with the pixel density of smaller screens in phones. We need resolutions of 16K + on the bigger screens! Being a Super AMOLED screen it has very vibrant colours, and much higher contrast ratio than LCD screens of similar quality. This phone is a pleasure to look at and use. Plus the lower resolution only squeezes more performance out of the graphics chip as it has less pixels to power!
I ordered the black model, finish looked great, really smart and high quality feeling. The phone was very heavy in the hand, probably due to the metal casing, but I really like this, it feels like you are holding a substantial piece of kit, not a plastic case with some expensive electrical parts inside.
The preloaded sense firmware was not brilliant by any means, it has a lot of bloatware applications which the average person would never use, however I noticed not to many of them would be running in the background, so the impact on RAM usage wasn't huge. After I had installed about 20 more apps from the play store the phone on average used just over 400Mb out of its max 780Mb of ram. (You never get the whole 1GB). Similarly the hard disk space claims 16GB, but you actually get much nearer to 12GB. However providing the sense firmware doesn't glitch, which I cannot confirm, the average user would get on fine with it, and probably enjoy a lot of its functionality.
For me on the other hand, I can't live without ROOT, some of the apps I use require it, and I'm OCD about removing bloatware and crap that I don't need. Plus after seeing how big a difference custom ROMs can make to a phone I can't live with one that I wouldn't be able to flash new firmware on. Hence why I had to send it back to Amazon.
I have however contacted another seller in the Amazon market place, and he confirmed he had the z520e version, and it is on its way to me in the post. So a proper review may follow shortly.
In summary, both great phones, just make sure you know which one you are getting.