First things first, each disc on the compilation is mixed relatively well with there being none of the horrific pitfalls that I have witnessed on some recent 'urban' compilations.
Secondly, the majority of the track selection can only be described as broadly commercial, which is the reasoning why I have given it a decidedly average score. If it were not for the stellar track selection of DJ Ironik then I would have probably given the album a 2 out of five.
I have listened to Hip Hop, R&B, Dance Hall and Garage for years now and used to frequent the original Twice as Nice club nights and vividly remember the original (and superior) compilations mixed by Steve Sutherland etc. My problem with this latest compilation is that it clearly appeals to a mainstream audience (with the inclusion of Rhianna reinforcing this point), however if you like the current mainstream hip hop and R&B then you will probably like this album. If however, you are not a fan of commercial hip hop then I would solidly recommend that (bar Disc 3) you do not bother with this album, as you would be far better off purchasing a compilation from artists such as DJ Rectangle.
With regards to the bassline/funky house selection on the CD, the selection seems to be standard in comparison to existing compilations albeit there have been some good track selections made (e.g. the inclusion of Doneo's Devil in a Blue Dress). However, I would strongly advise that if you are looking for an old skool garage compilation then do not purchase this album, as one of the earlier compilations would be far more suitable.
In parting, one item that does differntiate this CD from others is that it includes a substantial amount of dance hall, with tracks from artists such as I-Wayne and Dawn Penn providing a welcome break from the suger coated production currently popular in the urban music industry.