Rest easy, they are great pistols. The back strap is removable, but I use the smaller one and never take it off. I have added night sites and Talon grips to mine. The Talons do two things. One they give me a much more secure grip and they cover the back strap. If you clean it and don't take the back strap off, it will take down just like a Glock, you do ,however, need to pull the trigger to remove the slide, again very Glock like. That is one reason I like mine so much, shooting and cleaning is almost like shooting and cleaning my Glock. They are both reliable and easy to maintain.
One thing you will need to adjust to is the mag release, it is 'paddle' type and part of the trigger guard not a button like most have. Once you get used to it, it will become easier to use.