How long have you been using the product?
Almost two years.
Did you try any other models before buying this one?
jamo, technics, warfedale etc. nothing too high-end.

I'm more than satisfied with them.

Which feature do you like the most / the least?

The most
Sound quality, be it in the low end, the mids or the highs, everything is very well translated even at high levels, I can use them as reference for all other speakers that I've tested, and I think they are perfect (although I've never tried speakers costing more than $1000...)

The least
Hmmm...I have to think real hard. Maybe the veneer, but it's not that important anyway.
How would you rate the product's value for money?
I bought them used for $150, so it's hard to do any better, they are simply perfect.
Based on your experience, would you buy this product again? ...
Without hesitation. Infinity / harman kardon forever