Although I can't speak first hand about the Evolve tune for the 1M. I can talk about how easy their PC software and interface is. I have used it for both my E46 and E90.
The best part is that you don't have to go to any other dealer. It can all be done from you very own garage, parking spot, or home! It's that simple and fast.
I have been following the work that Evolve has been doing for the 1M. I really regret not ordering one! Their full span of products ranging from a muffler to intercooler to tune shows how much R&D they are doing for this specific platform. They have tuned 1Ms all over the world. Some of those international clients have been posting some very impressive videos depicting their performance gains from Evolve's tune!
There is no doubt that if I was fortunate to own a little beast like all of you, I would choose Evolve again and again.