It's a Juki TL-2000Qi semi-industrial sewing machine and it can probably sew through solid steel.
It does exactly two things, a forward straight stitch and a backward straight stitch, and you'll be GODDAMN grateful it even lets you do that. You want to do zig zags? Get fucked.
Threading it takes about 10 steps and feels like trying to defuse a bomb. It's got a side fed bobbin case that takes an additional 3 or 4 steps to thread. If it's not sharp or strong enough, it'll snap through a heavy duty needle and without even slowing down, no matter stopping, sending the tip flying through the air at speeds capable of sending a piece of straw through a telephone pole. It's compatible with exactly 0 of any other parts from any other brand machine except sometimes needles and it has a palpable air of bloodlust surrounding it.
But it'll sew through 4 layers of denim like a hot knife through butter.