I have been playing the test server a bit and the new trade system seems quite nice, but there seems to have been a decision made to restrict the amount of trades that can occur to just 4 unless you pay coins or gems for any additional transfers and you have to pay every time you make a trade. The different is:
at the moment i can list 400marble for ~6gc and get ~30 quick trades.
with the new system, i can only get 4 of these trades unless i pay coins/gems for 2 extra "slots", not very cost effective when the coin cost for these temporary slots is higher than the value of the items i was hoping to get back.
can you please reconsider the trade blocking as its going to kill off any mass low level item trading.