Alright, nice to hear. S&I surely would be way more fitting at this point, but I don't think there is necessity to make a separate post. This thread can be moved though.

I'm glad you asked. Yes, the inventory is quite inconvenient. I personally think the way inventory is set up is flawed to the core, however it generally only becomes apparent when you have big inventory. Here are few limitations:

• It takes around 5 to 10 seconds to load a big inventory. Might sound like a non-issue, but it ties in with the following point.
• To sell an item you're still forced to navigate to a separate page (to set the price). If you're selling, let's say, 10 items, just navigating between pages can take up minutes.
• Sets are messy and hard to work with as they all look the same and you cannot arrange them in any other than default way.
• More than 50% of the screen is a white space in desktop resolution as all HTML elements have static dimensions. This makes for a very long scrolling session if you're trying to manage things without using search.
• Buttons, hypertext and check boxes are way too small to operate on a touchscreen or even on desktop to some standards.

There are many more nitpicks but I suppose those are the main issues.