People always seem to be on the fence on this one. I personally do not use it because there are much less expensive fertilizers that do just as well for my orchids IMO but I am not a scientist and have only my opinion. I am happy (for the most part) with the way my plants bloom and grow. I don't think spending extra money on a fertilizer like this really makes a difference - though, I do use a variety of fertilizers on my orchids. I started to pick some up one time and saw how small the bottle was and how concentrated the formula was and decided that it wasn't for me. Maybe if I tried it, I would like it, but for now the current use of miracle gro and fish fertilizer seem to keep the orchids fairly happy.
I decided not to vote in the poll since an endorsement from me either way might sway someone's opinion and since I don't use it, who knows - maybe it is nectar from the gods... haha.. I just don't know.
Cheers,
BD