I have a Legend too and I like it a lot. I'm going to say pretty confidently that it might outperform the Voopoo mod as far as longevity. There have been two complaints that I've seen battery door being a bit hard to open (I haven't had a problem though and I am not what you would call manually dexterous.) I am thinking this may be mod specific. You will probably/possibly want to do an update on it, so if that's an issue, well.... I also have not needed to do an update on mine, but I bet if I did it would improve usability. Etc.
Anna