yeah I'm not far from the Philly area too (20 minutes away in South Jersey) I haven't noticed anything different particularly but I'm mostly on wifi. I'll keep an eye out.
are any of you on the unlimited data plan? if so when you go into mymetro app under data usage it says something like you have the unlimited data plan. I just ask because it would suck if metropcs does throttle on unlimited data while not having the courtesy to track and display data usage in mymetro app. granted we can check in Android settings, but still. my first month I did just over 5gigs and didn't notice any throttling. at the end of this Cycle I think I'm going to intentionally use as much as possible to see if it throttles. I get mixed reports of when they throttle in comment sections such as the one here
T-Mobile, MetroPCS Does Throttle-Free Unlimited 4G Data