If you could improve anything about your brokerage or trading platform, what would it be?

I have an account with both Interactive Brokers and Trade Station. Both are like opposite ends of the spectrum- but both work as intended. Trade Station has a few odd quirks, but overall I'm pleased with it.

I get my buy and sell signals from a coded algorithm on TS, where I used to generate them on a spreadsheet, which is really helpful, but entering laddered orders the way I do works easier on Interactive Brokers. The only limitations I have are self imposed- I don't have coding skills to automate trades in TS, and obviously can't code an API for IB, but that's on me ...............