I like you use the Makita 9227 as my primary rotary and have yet to find another unit that can go toe-to-toe with it in terms of power, speed, balance, and performance.
The new Flex you've demonstrated is probably the closest comparable machine. Flex machines are very well designed and built. They handle and perform like a dream and their craftsmanship extraordinary.
I own the Flex 3401 DA polisher and if this new Flex rotary is anything like it it's quite a machine...