I got these DW 7000 double bass pedals for Christmas, and they are AMAZING! They are more fluid than most double bass pedals, and by that I mean that it is easy to push the pedals down quickly and in a rythm to get that new metal sounds all of the bands are playing these days. It is easy to make the "machine gun" sound with them because they are constructed very well. I haven't had any problems at all with them, and I would recommend DW over any other brand of pedals. If you are a Metal drummer or a Rock drummer, I would say these are a must. You don't even have to play that kind of music to have them either. You can use them to play rythm drums for a church or anything, because you can come up with interesting new rythms using double bass pedals. They pedals are very sturdy, with velcro on the bottom so they stay connected to your carpet. I have tried them out, and pushed them to the limit by banging them as hard and fast as I can, and they stay together, and these pedals are a great buy. You will not be dissapointed.