Anyone using Graupner GR-18 all in one flight controller/receiver for miniquad?

[jamesb72]

I heard about the GR-18 ages ago before it had multirotor software, and liked the idea of a plug and play flight controller configurable/tunable from transmitter touchscreen, but have never seen one or heard of anyone using one.

Graupner now sell the Alpha 250Q race quad with this unit, but its pretty expensive (£350 BNF and you need ~£250 tx to use it).

Looks like the GR-18 is around £100 alone which isn';t crazy if it works I';ve heard it mentioned on the multirotorpodcast as a great setup, but US pricing is much more favourable than UK.

Anyone tried this can give any opinion ?