No complaints with Boost Mobile so far
I purchased the Sanyo 3810 Mirro a couple weeks ago and so far I'm loving it. The phone is big but it's very easy to get around and seems well built. I like how my phone doesn't accidently turn on when it's supposed to be off. I do wish there were wallpapers available for this model.
I also have the pay as you go plan, calls come in clear and have not had a dropped call yet. I'm on the east coast and I can talk to my son in Cali without any problems. I like how I can see my account usage online and realized that I was being charged 35 cents a day even when I wasn't using web access so I called them to deactivate it.
Keep up the good work with this site, you've done a lot research!