Super comfortable boot. Adjustability was ok with its lacing system. In terms of flex I would say they are right in the middle of the road, not stiff but not ridiculously soft either. I didnt have problems with liner lock.
The only problem I had was their bulkiness. I wear size 12,5 and wanted some lower footprint boots to reduce overhang.
Overall and if you don't have issues with waist widths I would highly recommend Deeluxe R.D's as a medium flex all mountain freestyle boot.
Good to hear quality-wise they're a good boot. I really like the liners they offer and the speedlace system looks better than my Celsius ones.
Being a 10.5 in my Union M/L I probably won't risk buying them online and having them not fit width-wise.