Not really since the queries only run when updating the cache. It all depends on how you are about queries, I guess. They don't bother me as much as some others since my board doesn't have a lot of traffic yet. On vB2 I was running around 36 queries at all times on my forumhome where with vB3 I run around 13 from the cache and 26 on a cache update. That sounds like a lot but it is still better than it used to be. I'm not a query conscious as most people are, I guess.