Been using Zencart for maybe a month or so. I've been flubbing my way through most of it and I do like every thing so far. I've broken the site a few times due to addons I've tried and it didn't work (i made back ups of everything so not QQing). I am looking for something like Product Finder, which I saw in the contribution section to downloads, but it says for 1.3.9.
I'm currently running v1.5. I'm a motorcycle parts dealer that is been building a site when my circumstances lets me add to it. I don't have any formal PHP background but if a tutorial makes sense, I can do it. I have some but not excellent code understanding. I'm selling pretty much everything from exhaust pipes, to tires, to something as small as blinker. For now, I've been listing stuff in multiple categories that lead you in to 3-4 subs which doesn't bother me but need better efficiency for those that aren't window shopping and are only looking for products as per their motorcycle. Example is Exhaust>Yoshimura>Slip On> Honda Kawasaki suzuki yamaha. After selecting one of those subs, you are presented with a list that looks like R77-D Exhaust for 2011 CBR1000RR.
All the jumping works to an extent plus i do have a search bar up on the top. Altho having something that just narrowed it down for you is fine. I have an ######## load of option values to cover all my bases when you select some products that I'm being general that it fits Kawasaki and you find drop downs with your year, make, model. Only issue with being to general is then I need Stock by Attribute and that i think is still not recommended for a live site yet.
My site is sportbikespeed.com so you can get a jist of what I mean. Its no where near complete with products but i add when I get time.