I can't answer your question for experience, but I can tell you what I have heard when I started looking. I had considered a MMM for my CK25 but have decided to go with a RFM instead. Although you don't have as much ease dancing around objects the cost is much less for the whole setup. I have also heard that it is a bit of a job getting the mower in and out. I think the mid PTO is quite expensive and so is the mower. If I remember correctly the cost differance between the two set-ups is more than twice what the RFM is complete. Maybe one of the dealer folk here can give you some more solid numbers.