Superpass sector antennas

We are about to switch our 900mhz AP’s over to horizontally polarized antennas. Does anyone have any experience with Superpass sector antennas, or have any suggestions on other good h-pol 900mhz sector antennas?

Normally I would just buy one and try it; we’re in a pinch to get this done though, and we need to buy 10 of these things. I hate to sink that $$$ into something without getting some realworld feedback. Thank you guys for your help.