Should I Still get My iPhone Exchanged or No?

My apps were acting up ever since I bought this phone. I didn't get push notifications from apps at times, I do but other times I don't and this never happened on my previous iPhones. I made an appt with Apple to get my phone exchanged again. I did once and I found out the other one was fine. Should I get this one exchanged too or keep this one? I put sim card back in and so far I'm getting push notifications. But when I first bought this phone, there were many bugs and glitches. What should I do? Should I still have it exchanged? After I did ios restore, i didn't get push notifications all the time. Even i did get push notifications. At the moment, I've been getting them. What should i do?

Added (1). Push notification issue fixed after putting the sim card back inside

Exchange it because some reports were that apple shipped a bunch I phones with bugs so yea exchange it