After completing a full build article here I have been flying the Hobbymate Asteroid for a few weeks and have completed my review. This review is text/pictures and embedded DVR so it's much easier to scroll through than a video review (IMHO)

https://www.quadifyrc.com/reviews/hobbymate-asteroid-3-inch-quadcopter-review

The full article above but here are my key findings:

• This is a very premium kit for $140 and genuinely capable of 3-6s (you can choose 2700kv for 6s or 4300kv for 4s)
• It is capable of 91mph+ on 3s or 106mph+ on 4s (GPS readings)
• I feel the motor kV is a little too high for 4s but this can be resolved with a throttle limit
• I was sceptical about using an EOS2 cam for FPV but the 4:3 ratio variant actually works well
• Given the power of the motors and strength of the frame it is light at under 140g

The Hobbymate Asteroid is a new 3 inch quadcopter that is available in kit, BNF or PNF formats that is available with motors and electronics suitable for 4s or 6s (!) operation. The purpose of the blog linked is to show how I have built in close detail and how I have set up betaflight software for optimal performance. Note you can spend an extra $30 to have this build with a FRSKY receiver but I always like to tinker and optimise my build which is why I have chosen this path.

Personally I prefer to build myself, part of the fun of the hobby. Documentation not so much but now it's done!

www.quadifyrc.com/reviews/hobbymate-asteroid-3-inch-quadcopter-build-tutorial-and-betaflight-pids-etc

I'll follow up with the review shortly but boy this is crazy quick in a straight line. With a CNHL 650mah 4s and a 80% throttle limit it's faster than anything I've flown. I plan to put a GPS on to verify.