I have used your eshop for several months ,I met a lot of bugs, I made some bug reports in your bug reports sections, and I saw there are some other people reports bugs, which still has not be solved.
I think it is good to add new features in the nopcommerce, but the most important thing is fix the existing bug, and made nopcommerce more stable. nopcommerce is eshop, I think most people just want sell products without any errors,
for example, I updated the eshop from v 1.5 to v1.6 the shipping methods has bugs, I can not use it now, and I saw the others have met same error message, which has met shipping issue from v1.5 to now. still has not been fixed.
So I think itis better to fix existing bugs first, otherwise, no matter what new features you have add, we still could not ship the products.