No one says you need to use the fast charging of the Turbo charger. I'm not and I don't think they figured using it everytime. I use a regular Motorola charger, same one I used on my Droid Maxx. As far as having a non removable battery, that's what most OEMs are doing. I ran my battery down to 1% to see how far it would go. I ended up with 33 hours and around 5 hours of sot.
I've owned Motorola, Samsung and HTC, and I've been the most satisfied with Motorola. I wouldn't have gone with them up until the last couple of years due to their skin. My HTC's weren't necessarily bad, but they seemed to be pretty quick to abandon support for their devices. My Galaxy S3 had more issues than any other phone I've ever used (except for maybe the Thunderbolt). GPS issues, lag, slow updates, radios that weren't as good as the HTCs I'd previously run, screen burn in, and battery life decreasing to around half of what it was after less than a year. The last update I got killed my mobile data, it can make calls and connect via WiFi, but no 3G/LTE data. We have 2 other members of our share plan that ran Samsung phones, one went through 3 Samsungs and the other went through 4 during their 2 year contract. They just don't last. That ensured we'll never go back to them again.