It's going to be pretty crappy. It has discs and dual suspension...but they're going to be REALLY crappy components. If you ask me I would not buy a brand new wally bike if you're considering whether or not you want to get into it more.

Just find a good used hardtail from a respectable brand. You'll get way, way more value and it'll be easier to sell back for close to what you paid.

For what it's worth I'm the same as you. I was a roadie for a while but was invited buy a buddy to go MTB'ing. He let me borrow a bike and I basically fell in love. 10x more enjoyable than road riding (and 10x the workout).