I think it's worth it as well. I use ultimate(there was a sale a while back when I had my inspire so I figured why not). I didn't know what to expect so I wasn't too disappointed when the results, at first, weren't what I had hoped for. This is probably obvious but the key for me anyway was to check out the website and really get a grip on how to tweek the customizations. That is what really drives JD in my opinion. After I did that my inspire, which had absolutely terrible battery life, was doing okay. I would maybe suggest checking out the website and seeing what you think before dishing out the cash.
Sent from my SAMSUNG-SGH-I727