Moved back with my mother at 18 and out again at 20. Back at mid 21 and been out since the month I turned 24. Turned 26 last month. If you have a good relationship with your parents, then it isn't all that... it can be very stressful, but an esteem booster for sure. You'll probably be working a lot in order to pay for your rent and bills. No parents to cook for you, help you with laundry, buy your groceries or help run your errands, which is fine, but may not be if you plan on being a full time student.
If you have a bad relationship with your parents, then it's probably amazing like Dres says.