I hope they will improve as I use this poloniex site for quite some time.
Recently I had a problem with zcash when I deposit and after I made a support ticket to them they resolved the issue. I am very happy about that...but I still have a ticket for about 53 days relating a siacoin depozit to the poloniex site.
I hope at least things will improve as this will be in their interest because wihout clients the site will fail.