I have to thank SE that they implemented this great feature, but after I tried it I think it's need to improve in the future. Here's my comment;

- When you purchase 1 item, you'll kick out from purchase menu and you have to run back and forth to activate search menu and browse to your desire item again... this is annoying! Imagine that you need to buy many item in same category and you have to do this process again and again.

To fix this : just don't kick us out from search menu, just remember our last search result and bring us back to our last search result so we can purchase another item.

From what I look, it seem like there's some technical difficulty for SE to implement this because when finish purchase, seem like it need to load zone again because everyone was gone... and that's why it need to kick out

Another recommendation, is it possible for us that when we try to sell item, it must show the purchase history beside retainer inventory so we don't have to walk back and forth the write the price history down so we can know that what's the right price to sell our item in market.