Yes Sir, I used to use it a bunch years ago and it was adequate for predictive site surveys, the more effort you put into it the better the results, but there are other products that certainly do better or are easier to work with. The last few years been using Ekahau, so my usage of the RF Planner has been little (ok, none) the last couple years. I'm not a frequent heavy user doing tons of site surveys, since that's typically a paid professional service done by partners, but from the several that I have done, it seems you get what you pay for with ESSP. But if it fits your needs, I've typically had solid results with RF Planner.
