Ok, my story
Got Modo 601 2012, mainly I was impressed by renderer, didn't know literally anything about this software.
Used it few times for things like product shots, single object with simple animation for later comp in TV commercials. Worked well for that, renderer was a really nice refresh, compared to Mental Ray. I've used imported models.
I'm not freelancer, just wanted to have some, preferably affordable, commercial software at home.
For all the rest, after few month of learning, somehow just jumped one step further, to improving my knowledge of Blender. For me, Modo was a strange mix of missing features and unbelievable 'over - detailing' of existing ones. Had hard time, just to get the desired selection sequence via tool pipe, found two separate commands for zoom selected component and zoom selected object. Four or five or more types of groups, and so on and so on. But no lattice operator. OK, lattice comes later in 801 I think, but become 'reserved' for animation, in workflow suggested by Modo.
In short, quite opposite to Max or SI, where I've learned to learn only the functionality, while workflow, how I'll use something, for modeling, animation, helper for baking textures or anything else, this is exclusively my choice. This Modo's 'focused' workflow makes me suspicious about all new features in 901, 1001 or else.
Anyway, around 2012 - 2013, Modo - Blender mix was a winner in my 'affordable for home' category. Today, when it's possible to get the 'Dream Team' , Maya LT and Houdini Indie for yearly price of good old XSI Foundation, there is no doubt where I'll see the future. Will not update to Modo 901, I'm pretty sure.
Also hate to say, at least where I live, didn't noticed dedicated Modo users in three years, while in category, there is a moderate growing of C4d and, especially, Blender.