@turquoise-- Coenzyme q10 gel is what is found in the soft-gels. Soft-gels are better than tablets because they get absorbed faster. I personally think that they are easier to swallow too.
I've never taken coenzyme q10 in powder form but I wouldn't want to because I imagine that it doesn't taste very good. Plus, it might be hard to take the right dose.
I've been taking coenzyme q10 soft gels for a few months now and I think they work great. Just make sure to follow the dose instructions and don't take more than recommended. Coenzyme q10 is fat soluble so the excess gets stored in the body.