I really like the Nexus. My original plan was to try it out for 30 days and then return it and get the evo3d, but I absolutely fell in love with it. I do like the wifi hotspot, but I would root if it didnt have it. Also, you cant use 4g hotspot without rooting, so keep the 4g turned off when you are using the hotspot. I was actually shocked at how fast the 3g connection is though. Our server was taken offline at work last week, and my phone became the office internet. It was incredibly fast. The speakerphone does suck. But its not like I sit around jamming out with my phone. I can hear people, it does its main job well.
Another thing I really like is the new stuff always coming to the Nexus first. Netflix, Skype (ok, this was a day late), Google wallet. Its just cool that I dont ever have to wait for the newest stuff.
I wish I knew more about what is available after rooting. I havent explored that at all but I would like to. I just dont really know of the benefits and its not that straight-forward to figure out this stuff.
The boot up time is rediculously fast. It boots in about 15-20 seconds. Battery life is great. I dont have any signal issues that others seem to report...I am in a great Sprint area though. I am on the edge of a 4g area. I wish I could get the connection at home because 4g is a different world. I cant wait to try LTE someday. APPs. Man, there are a ton of great apps. I'm using the swype keyboard, its awesome. Blew an iphone users mind over the weekend (always nice). Its fast and responsive. It works great with Ford SYNC on my new car. This is just a great phone for me.