Diesel is the best club in Pittsburgh, hands down. It's conveniently located in the South Side, so if you're looking to grab a few drinks or check out the bars it is walking distance away from everything. The club has the best lighting in the area, and one of the best lighting systems I have ever seen (I have checked out clubs in NYC and Chicago and it is on par with the best there). If you arrive before 11PM, there is no cover. Drinks are reasonably priced, and the earlier you go the cheaper they tend to be. The club is generally emptier towards the earlier hours (before 12AM), but after 12AM it starts to pick up and by 12:30 or so it is usually a huge party. Easy to dance here, get in the crowd and have a good time. Bottle service is reasonably priced and the service is excellent - the rooms are very nice and modern and the upstairs table area overlooks the entire dance floor. They are working on the rooftop bar/lounge, so that should be amazing during the warmer months. Overall, great club with a trendy, upscale atmosphere!