It might not sound like much but 1.2" definitely makes a difference! It looks MUCH better and gives better control (or the illusion of control) around turns. You also lose that unsightly wheel well gap. The downside would be having to pay more attention to speed bumps and steep driveways. It also makes it a little more difficult when you need to get a jack under the car (you'd either need a low profile jack or drive the front wheel on some blocks to give you the space for the jack).
Overall, I'd definitely do it over again!!!
Before:
After:
