Unless you're in a screaming rush to get one, why not look at some in action on the ice and go from there, once you have made the jump, then it's too late to change your mind. Flashers, whatever the brand, all do pretty much the same thing, with small differences in zoom, interference rejection, etc. Some units offer the ability to be used during all seasons, others offer the choice of running in regular graph mode or rotating rainbow of colours(definitely hard on my eyes and would not buy one). Lastly, some will say that only the "real" flashers(Vex/Marcum) provide real time info from water to screen, I call Bull on that. I just think they're mad they spent so much more than others and have to have something to moan about.