I have a Apline 160 with Van 36s and a coil DHX 3, its 34lbs. Ive pedalled it round dalby red in 2 hours 15 mins, 25 miles + in the peaks, local rides, trail centres, downhill tracks.
Its not as fast as XC bike uphill, but its fine to ride XC on. The bouns is that is awesome downhill, jumping about and generally mucking around on.
Easily keep up with mates on lighter bikes, but then i consider myself pretty fit. if youre a tubby bloater youre better off buying something more suited to your weak legs and heart.
Be honest about what youre going to do on the bike, if its fire roads and tow paths, and wide well used bridleways then maybe you dont need anything as versatile as the alpine 160, but if you ride the interesting terrain then its alot of fun on the alpine 160.