Specially, it allows customer can filter products via manufacturer, product min price, product max price and product types (Virtuemart 1.x) and custom fields (Virtuemart 2.x).
New version of VM products Ajax search can search products of Virutemart 1.1.x and Virtuemart 2.0
Virtuemart ajax search module doesn't show custom fields filter at frontend of module but it can search through all the custom fields of Virtuemart component that administrator selected at backend of Ajax search configuration component. Shouldn't you contact us for support before writing the review? You also can submit a ticket to ask the help from us about your problem from here: http://joomdonation.com/support-tickets.html
Thanks and looking forward to hearing from you.
There were some issues with finding products but that was more down to our naming structure.
However I have to say the support from Dam was excellent.
Dam made some small tweaks which which made the component work even better for us.
Well done and thanks