I don't consider this a con, but a part of the job: Everything DT sells is $1.00 or less, and these stores don't make a small amount of money. This means that if you sell 7,500 pieces/day, you'll need to re-stock the same number of pieces daily to meet sales. Obviously in a multi-price environment, there is much more freedom. It also means that you get massive shipments at least once week that the company expects to be processed within 48 hours. With good planning it's possible, but make no mistake, your success as a store manager will depend largely on your ability to process this freight.
For those of you who, like me, come from stores that you were able to keep spotless, it's not going to happen here. You can maintain a store that is somewhat clean, but the amount of merchandise that's being moved, touched and knocked down by customers is insane. In a high-volume store, forget about it.
There is significant, but not unreasonable, pressure to meet payroll targets. If your sales are down or are likely to be down, you have to cut employee hours. Getting them back due to strong sales is unlikely, depending on your DM. This does mean that you sometimes have to do grunt work, but if you make a quality schedule and train your employees, this shouldn't be a huge issue--maybe things are worse in low-volume stores, though.
50 hr weeks are expected in my district, actually region. You cannot hire assistant managers, the DMs do; for me, these are the only real cons.