I’ve demoed one and it was great, if it had been available frame only I’d have bought it.
Bikes like this (and I’ll chuck the Mega-AM, Spesh Enduro, Reign etc into the mix for good measure) are for enjoying the downhill sections of trails and for having an Enduro race ready bike.
If you want a bike that climbs like a mountain goat there are numerous lightweight short travel carbon offerings available, life is a compromise, you don’t get (almost) downhill bike ability with the pedalling efficiency of an XC bike despite what the marketing team of said company would have you believe.
The weight is a non issue. Still my heaviest bike is a steel hardtail with coil forks, 2×10 drivetrain, cheap wheels and zero carbon….but it scampers along the trail beautifully because it doesn’t wallow in excess suspension travel or roll on silly low psi tyres!….setup is more important than weight.
How did we get to the point where a 30lb 160mm bike is desirable but a 34lb 160mm bike is derided for being heavy?!
If the bike rides well (and the Process 153 does BTW) then the weight shouldn’t bother you.
Rode a DH bike by the British firm Empire recently, it was by far the heaviest bike on that uplift day…but it rode well, virtually no movement at the rear until it had some work to do, no pedal bob, in fact had the seat angle not been DH bike slack you could have quite easily pedalled it around the woods not just pointed it downhill….all down to setup, weight is something we (cyclists in general) obsess over but is usually a red herring in how good a bike actually is.