Two constructive suggestions:
1> In a real market you are charged on completion, not on offer. Right now if you pay for a slot, then need to change your price, it costs you the slot money. This is making the market expensive to use and illiquid. The market is powerful feature, the game encourages us to use it, lets please make it efficient.
2> Peeps like to make many interesting offers of random stuff, but its difficult, as far as I can tell, to find that persons offers. Surely the ability to search on a name would add utility?
Offered constructively..
Os/