The Good:
Nice Screen, good colour range but touch response is a little slow and no multi touch, resulting in v..e..r..y.. ..s..l..o..w.. typing.
Like the connection to your google acount and doing online contact storage.
Camera has good quality and I like the way it can connect and upload photos and videos to facebook and youtube respectively. Although no flash lets it down in low light conditions.
Customisable home screens are nice, you can get local weather reports based on your GPRS/GPS location, you can also get a full screen sized email widget or bookmark link one.
The Bad:
Unlocks itself in my pocket then sets alarms at random times, best one was at 3.27am labeled S@ZT4. Although usually its in the daytime so less of an irritant but still annoying.
If i put passkey on then I get the phone perma locked because it keeps getting the key wrong in my pocket, then I have to enter my google account details to access it.
As said above, the customisable home screens are also changed if I don't put a passkey on it, random links appear and other widgets are deleted, Once I had a full screen of google.com links on the far left home screen.
One of the phones hidden features is its random restarting, this has occured in the middle of a uni lecture, this phone makes ALOT of noise when it turns on and there is no way to stop it. This has happened at a peak of 4 times in a single lecture (2 hours), eventually I just removed the battery and threw the phone into my bag and apologised to the rest of the lecture attendees and lecturer who were none too pleased at me or the phone.
Yesterday it removed all of my contacts, wiped out my app data, removed my prefrences, my settings and removed my customised home screens. IE a complete reset, I have no idea how it happened since it had been sitting on my desk all day.
Small face buttons have started to come apart after a couple fo weeks particularly the metal around the back and home buttons which have bent back and now stab into my fingers when I try to use those buttons. It isnt painful but it is noticeable and they tended too hook into the small ridges of my fingerprints which then starts to hurt a little.
Its more than just a pain becuase this is my 2nd Tattoo, the first one had similar problems and was returned within 2 weeks.
Lack of support from android store for the screen size leads to too few truely useful applications and even fewer updates, even now after the phone being out for nearly 6 months which really shows the niche which HTC have put themselves in with this phone.
Conclusion:
Some people have had fantastic times with this phone and cannot praise it enough and I do wish I was one of them because I have had nearly the polar opposite experience.
Save yourself the hassle and get the magic or hero, this phone has just been a disappointment for me.