UCV is OK if you want a break from your other study materials. They're fast reads and are perhaps helpful to reinforce and test your knowledge in a different way . They don't present new information-just present it a different format.
While you're studying it is important to test yourself to make sure you really know the stuff vs just thinking you know it because your eyes are passing over the same words again and again. UCV would be useful for some people for this. I did the anatomy one and didn't really find it all that helpful--but that's just me. You might really like the series. I would say if your library has them or you can get them used, then just try out one or two before you buy the whole thing.
If you're just going to have a few resources, then 1st AID and the NMS question book are probably better choices. If you have extra money, I would put it on Q-bank and some of the High Yield series--whichever areas you're weak in. Or some of the Ridiculously Simples--esp Micro and Neuro.
