New Fractal user here also!
I've had the FM3 for a few weeks now. I'm mostly a home player and have had several modelers during the years. Last couple years I went trough a phase of several small tube amps and heaps of pedals, which was fun and all, but I have to say the FM3 is the best single gear purchase I have done in my life. It's a cliché, but WHY DIDN'T I DO THIS BEFORE?
Sure, it has a bit of a learning curve, but the manual, Fractal wiki and forum as well as this forum have been really helpful. The FM3 Edit is just great. Unpopular opinion: the onboard UI is not that hideous either.
It has been hard to put the guitar down after I got it up and running. It's just so easy to get lost in the greatest toans I have ever been able to create with my gear, and I haven't even messed with that many amps yet - a couple Fenders and a couple Marshalls. They're just so good and easy to get them where I want to. Most of the effects are great and just work. I even like the drives.
Of course, there are some flaws, but I take care of them with other pedals. Fuzzes are a mixed bag, as they are in most modelers. I think some of them are great, especially the various Muff models and the Hard Fuzz. Fuzz Face model is a bit off for obvious reasons, but my Kingtone covers that. Fuzz Rite I just love, so I got that on the board too. I don't even want to talk about the spring reverb in the FM3, but fortunately I have the Surfybear. It leaves a reverb block for other uses as well.
Here's a pic:
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