Terrible service!

I thought it was just me.  Currently on a family plan and everyone else thinks it's great.  I've hated it from day one.  I get no coverage at work, or on bike trails.  Coverage at home comes and goes (but it's blazing fast at the t mobile store 1000 feet away from me).  Was on Sprint before and it was much better.  Thought they'd integrate the networks eventually.  On wifi calling I get dropped calls, garbled sound, or echos.

I'm not 100 percent sure it isn't the phone, but it's hard to diagnose since it works fine in the store.  New sim card hasn't helped.  Not sure whether to try a new phone or just switch service at this point.

I will comment that I was sitting next to my uncle the other day at a park.  His phone worked fine on one or two bars, mine bounced between one bar and no connection and was pretty much useless.  Same phone, same network, same spot.  I'm guessing t mobile signal is very weak and it's just a variation in the phone itself.