I have the single engine version as does Andy, Buck, and Goose. Scott, Sean, and Sebastian have twins. Scott and I flew our planes together at Winamac and the single has a considerably longer flight time than the twin. The install is a lot simpler (less stuff) and is lighter. I would get the single. If I wanted a twin engine Rafale (and I do), I'd get the big 1/5 scale from Aviation Design (with twin Kingtech 210's).
Andy, Sebastian, and I have all gotten some gear parts from BVM in the last 6 months to a year.
Regards,
Jim