Store coupon will automatically apply at checkout for a $95.52 discount, then you can use either of PLUSNM15 or PLUSM17 for additional discount.
Had this printer in my cart, and was considering it alongside the Creality K1*. When I went to try and checkout with the Qidi the price dropped even further, and I discovered the store coupon has just been added. Seems like one of the better reviewed CoreXY printers. It has a full enclosure too, which is appealing given the advice coming out about the toxicity of 3D printer fumes.
*The K1 can be had for ~$630 using one of the PLUS codes here. I got sent an offer for $723 after having the K1 in my cart for a day or two, which may give you an idea what kind of offer they'd be willing to accept for the K1.
Picked up a Kobra 3 combo three weeks ago for $550. It also came with 4 kg of PLA, so about another $80 'off.'
As far as I know, PLA is fine to print with little ventilation. I do have a decent air purifier right next to the printer that's always running to help with it. I'm planning to make an enclosure soon, but it's a bit more complicated with the ACE.