I did enough quests and found enough enemies to kill that I was either level 9 or 10 before I did Lovis' Tower. Got through it pretty smoothly at that level. Just explore the world. There are plenty of places outside of quest areas to find enemies for leveling. I love the fact that there is no level scaling. Finding a high level enemy, running away and then coming back in a few levels to stomp him is pretty satisfying. I've experienced no glitches with the PC version. Looks like I made the right choice. laugh