New Milwaukees are not that good (12 amps).
Local welding school has a pile of them to prove it. They have a bunch of 7 and 10 amp DeWalts that have been taking the abuse. I have a DeWalt as well, couldn't be more satisfied. I have burned up everything from Makita to Harbor Freight. For the money, Harbor freight isn't bad, as long as you realize its amp limits. They'll last a long time for 14.99. You pay 89-150.00 for longer life spans, but you can buy 10 HF's for one 150.00 unit...Which will far out last the 1 150.00 unit.