I have a set of Sleishmans, with maple shells and Pearl hardware. They sound absolutely brilliant compared to my previous kits and I won't ever think of buying any other type of drum again, no matter how endorsed they are. The Sleishmans are super responsive and they are really easy to tune. I've got a few (respectful) disagreements with what people have been saying here. They are not heavy at all, in fact my 22" kick is the lightest kick I've ever owned, when I first picked it up I felt a little bit ripped off to be honest! Secondly, changing heads is as simple as with 'lugged' drums.
And did I mention that they are really easy to tune? The ring around the shell acts like a Timpani ring, so when you want to pitch them higher/lower, you only need to turn one tuning post (once you have the desired tone). They are really good drums.