I've used UEP albeit only for a few weeks. I have had a good experience so far.

Regarding Dell, I do think it's annoying you're forced to use 10% off coupons to breakeven. Especially considering Dell is harder to dropship, so now I still have to come up with a way to justify the salestax when shipping to my house (or deal with TE) as. well as the cost of shipping if free labels aren't provided. Another annoying thing about the 10% coupons is that it only applies the discount to one item rather than your whole subtotal. So forget ordering 5 laptops, you have to make multiple orders of 1 and use multiple codes if you want to do any type of volume.

Big Sky Buyers are great for free labels for Dell, although as of late they haven't had too many breakeven Dell deals.