Would you buy again?

I just got mine today and I love it so far. I had a Galaxy S5 for two days that I ended up returning because the mobile hotspot wouldn't work. I'm glad I went with this one so far.
 
I probably would buy it again...for several reasons:

1 - Sprint hasn't even come out with a newer device in several months (glad I didn't try waiting for the Xperia Z3!)
2 - It's a great screen...the photos are nice (though in bright light things tend to wash out a bit...but I haven't messed with the camera settings much)
3 - I've grown to love the size even though it's the biggest phone I've ever owned
4 - I've not seen any lag and the worst bug I've experienced is the other day my notification tone stopped making noise for some reason. A restart fixed that and it hasn't happened again.

Things I'd hoped I'd grow to love but don't yet:
1 - Back buttons. I get that they make sense and it's kind of fun to watch people try to figure out how to turn my phone on...but they still feel awkward to me and I honestly miss the placement of the power and volume buttons from my Galaxy S3.
2 - The knock-on and knock-unlock. Sometimes I just wanna press a home or power button but, oh yeah, it's on the back...which again, I'm not in love with.
 
would absolutely buy it and IMO the most underrated phone of the year! Use both and iPhone 6 & LG G3 and somehow always want to go back to my G3.
 
After the Lollipop update and a reset it's even better than it was when I first got it. Smooth, fast, and beautiful.
 
Yes I would by it again. I am very pleased with it.

I figured since a few of the big carriers made it their flagship, it was a great choice.