after previously coming from the Droid Eris, I will have to say that i personally did not like the phone. At first the phone was great, then after about a month of using it, I started to experience HUGE lag on the dialer, when I tried to make phone calls it would literally take anywhere from 5-10 minutes to call them. Text messaging was laggy, and finally when I broke down on the side of the road and TRIED to call for help my phone was completely unresponsive and after trying a reboot just got sent into a bootcycle.
That was just MY experience with the eris and finally they switched me to a Droid. Don't get me wrong, there are still tons of people that are satisfied with their eris, but it just seems so hit and miss with that phone that I wouldn't personally recommend it. In my opinion the Eris is a downgrade from the droid.