I use Alpha and PPU in my 7-08. The PPU has been very good - I loaded a group of PPU cases this afternoon for the 14th time. I'll probably retire them after this firing as the pockets are getting loose. The Alpha brass has been excellent. I ran one lot through 25 firings and another lot through 20 cycles.
I'm a hunter/plinker sort of guy so I'm not as fussy with my brass as some. In my estimation the Alpha is on a par with Lapua (use it in 308 and 6.5 CM).