Had my Rezound for a month before switching it out for the Nexus yesterday. Loved the phone, although as a first time HTC user then, I learned I'm not a huge Sense fan having come from a Droid 1, 2, and briefly a Bionic. Watching HD videos seemed to be a bit sharper on the Rezound, particularly live HD football on NFL Mobile. I also preferred the less slick hyperskin backing compared to the slick one on the Nexus. My Nexus tends to want to slide off of things when I put it down. Overall, I do love the Nexus, but do agree with others than the Rezound had a more solid build quality and was easier to hold in the hand. I have large hands, however, so navigating the Nexus isn't bad for me either. All that said, it's WAY easier to quickly type and access apps, screens, etc for me on the nexus than on the Rezound. Sense seemed like it was in my way at times. That being said, despite my happy ravings about the Nexus, I'm not yet certain I'm going to keep it. Two of my primary issues:
1) As many others have said, the rear speaker max volume is way too low. In a quiet environment it sounds fine (albeit a bit robotic/tinny at times). The 4.0.2 patch was supposed to increase volume a bit for Google Maps navigation, but I've not had a chance to test that yet. I refuse to go the route of installing an app like Volume+ to try to address something that shouldn't have been an issue to begin with.
2) The LED notification is all but useless. This may be my biggest complaint and lead me to return the phone if not fixed soon. The blink rate is way too slow, for starters. I need to be able to tell at a glance if i have a text, vmail, or email. Staring at the phone for 8 seconds in hopes of seeing a soft white light doesn't cut it. Light Flow doesn't yet work completely, but the developer has announced he's working in it. Again, however this isn't something I should have to install an app to fix. This stuff just worked by default out of the box on my other devices. I'm hoping when I install Handcent SMS again tonight that it will be able to change the color of the lights and blink frequency, but I'm not holding my breath.
3) (More like "2a") There are no other LEDs on this phone whatsoever. Thus, when charging the phone while it's powered off, there's no way to tell your charge is complete unless you click the power button and examine the white battery icon. Inefficient. If the charging cable had an embedded LED that went off when charging were complete, even that would be a good workaround. The LED notification on the phone itself doesn't even pulse red or anything when your battery is dying. These may seem like niggles to some, but this is coming from someone who was going to skip the Galaxy SII completely had it come to Verizon for lacking a LED notification in the first place. The Nexus' light is leaning into that useless stage, but I have to give it a chance.
At this point, my ideal phone (assuming the screen had improved on it) would have been the HD version of the RAZR that China received. With ICS' native resolution being 720p, I won't purchase a phone without that res. I have til January 15th to return the Nexus if I'm not satisfied. I love the OS, but if at least the LED can't be set to blink quickly and correctly in the colors I need it to at the appropriate times, then I will likely end up going back to the Rezound. As it is, mine needed to be swapped out anyhow since I was getting the pink glowing softkeys the first releases had rather than the proper crimson color, but it's not as if that affected functionality. I don't trust htc will be able to make their eventual ICS upgrade as tidy as the stock experience, but I can always flash a vanilla ICS rom onto it whenever S-OFF and perm root is achieved. I'm holding off, as I did with the Rezound, buying any accessories until I'm sure this will be my final phone. There is supposed to be a 4.1 OTA coming at some point that the testers got a brief look at while we're all at 4.0.2. Perhaps that will address my concerns.
Bottom line: I don't want to have to return this phone, but all the glitz and glamor aside, it has to function for me as a phone first. I can live without an SD slot, and I'm sure USB-OTG support will come soon for plugging in external SD readers. But if I can't hear my phone ringing at max volume from another room (or from within a pocket since vibrate is too soft) and can't quickly tell if I've missed a call, then it's back to the Rezound unless something unexpected is released by mid-January.