I ride a Primal 27.5 and I really like it. I run 140mm Sektors on it. I built it up after my 45650b cracked.
Compared to the 45650b I find it much more sprightly, but haven’t really noticed the extra stiffness (supposed) as the 45650b has the ‘gas pipe’ seatstay arrangement, which I think takes the steel feel away. Previously I rode a 26er 456 evo 2 which I really liked, but this had the four-piece seatstays and was much more compliant.
Anyway, I find the Primal a really nice shape. It is a bit longer yet a tad steeper than the 45650b, which I count as a positive. It looks lovely in the red and is very good value. I can’t vouch for long term durability yet, but if anyone will break it, I will. Of my four previous hardtails I have cracked three (the evo got nicked).