Heartland dental

Hello! Rising D4 here. I got offered a job with Heartland Dental. 140K guaranteed with 10K sign on bonus. That, to me, seems really low. Will be graduating with around 250K in loans with the goal to be to pay them back as soon as possible. No kids, likely no house payment/rent at first. What is Heartland like? Do they give you time to get your speed up? Are they pressuring you to sell treatment? Are they worth it? I know they give really good CE (for a DSO) Any and all heartland knowledge would be welcome. TIA!