Indeed! DarkSlide is an amazing ROM series, and V4.0 is definitely a fine addition! The quality you'll find with DarkSlide is absolutely amazing, these guys definitely strive for perfection. if you find any issues with it, just post in their forum, and the Dev's (BBCrackman & GatesJunior) are very quick to respond, very patient, and very willing to do as much as they can to keep their users happy. This rom is by far the best in Droid X! There are many great roms out there for the X, but without a doubt DarkSlide can't be beat...They offer both a Blur and a "Blurless" version, but the Blurless version is basically slightly Blurry-just enough to keep all the functionality of the Droid X, but not enough to be in the way! I've found that this rom runs insanely smoothly/quickly without a need to OverClock, though you can if you want. They've added some really cool transitions to the mix (introduced, I believe, in V3.3, but continued here)...they've themed the entire rom with an awesome eye for detail, and without any sacrifice to performance...
I really like the screenshots
Also, I should add that as long as you are running system version 2.3.32, their install.zip will automatically bring you up to 2.3.34 (which DarkSlide V4.0 is built on)
Anyhow, enough babbling from me...I'll include some screenshots here, and the OP contains the link to their forum thread-which contains download links as well as complete instructions for proper installation, official screenshots, and a very friendly/helpful user community to compliment the friendliness and helpfulness of the Dev's themselves...
Enjoy!
**EDIT 1/16/2011** updated screenshots...these show my setup on V4.2