First, I got to say that I'm in love with the Lagree method, but I will give you my best and honest review. I have been training in my local Lagree Fitness studio for a few years now and tried all their Megaformers in every variation. I felt that it is time for me to buy my own megaformer due to my studio being closed for some time now and because I want to step up my game. After my deep research and long discussions with Pilates Reformers Plus experts and my studio owner, I have decided to go with the M3 Megaformer and I don't regret it for a second. It is just perfect! the quality, the size, the features, it has everything I need. Yes, it is not cheap, at all, but it worth every penny. I received it after 2 weeks from the day I ordered it and my husband assembled it for me. I might had to just order their installation service as well because it took him a few days to start working on my project :-)
If you are looking for a professional mega former, the M3 is the one to get.