FWIW I’ve had a fiddle with it. There is one serious issue which meant that I went back to Max … stability. It was very slow on the HP Pavilion i3-powered laptop I use when I’m having to ferry my wife to a friend’s house. I lock myself in the kitchen, be completely anti-social, and get on with my work while she and the friend are gassing to each other. When there are several clones onscreen, Modo really grinds to a halt on that machine. Max, on the other hand, has no major issues on it. Both can crash but Modo seems to do it with alarming frequency on lower powered systems if this laptop is anything to go by.
Comparing modelling functions, though, I am very impressed with Modo. Everything just seems easier to access than Max. If it wasn’t for the stability issues then I’d have given it far greater consideration.
Once I can afford to get an MSI GT80 Titan laptop without my wife killing me for ‘unreasonable behaviour’ then I’ll probably go the Modo route.