AED123, LLC

This app is working great great for our new store, which will debut at www.aed123.com in late September, 2020. It enables complete customization with multiple filters. From a user perspective, the filtering is immediate (unlike some of the other solutions for this). We recommend this app for anyone who needs a sophisticated product filter. Update from 2023: This app is still working great, and their support team is very responsive when we have small adjustments that we'd like made.