Question for you mountain bikers out there... Hardtail vs. Full suspension?

Some great advice on here. Not sure what the budget is, but I just got this frame from a buddy and am looking forward to just a “little” squish in the back, but not full-blown suspension. Haven’t built it up yet, but mtn bike season is here!

http://moots.com/our-bike/mtb-29/mooto-x-ybb/overview/