Best SEO / SEF component for HikaShop

All posts I found about this topic are at least 5 months old and since then a lot of improvements have happened to the HikaShop component.

My question is:

1. Should I use a SEO/SEF component to improve URLs for hikashop products?
2. If so, which one do you recommend (free or paid, no matter).

I'm working with the latest stuff, Joomla 3.1 + last HikaShop and HikaMarket update.

That's a personal view on the matter but default SEF URLs with joomla are already way enough for SEO as far as I know.
Sure, you can use a commercial SEF component which can potentially make them prettier, but that won't help for SEO.
I would instead recommend to focus on everything else: keywords, meta description, canonical urls, site map, microdata.

Good!

This is the kind of answer I expected.