This is one of the nicest frame kits I have built. Top battery mount is a first for me but I am wanting to try it out. I like the way this frame sits slammed down low. I am running the amaxinno 1106 6300kv  with the new HQ 3x2 props. Hopefully they perform well together. I also like this iflight aio board. It makes for a really clean build with the vtx that snaps in with pins on top. Tried to flash my favorite version of betaflight 3.5.7 which I run on all my toothpick type builds. However this being a newer board with a target of stm32f411 there is only version of betaflight 4.0 and newer. This will be my first time trying out betaflight 4.2. I did put the 4.0 costume tune on it for 110X to 120X motors Community presents tune for micros. Hopefully it goes well. Will report back as I am going to do a maiden flight today. Was really disappointed that I couldn't run betaflight 3.5.7. So if you are not a fan of betaflight 4. than the geprc or betafpv boards have 3.5.7 available in version of betaflight.