Great table which matches my personal experience. But I think the fee you quote for Degiro is for a UK share, where 100 ULVR has a fee of £2.79. But the Degiro fee for a purchase of a US share is much less, eg 10/100 MSFT has £0.42/£0.72 fee.
I very much like your trading platform and that is it being continually improved. I have had great experience with customer chat.
Can I raise one concern? Maybe you can set my mind at rest. I do wonder about costs on larger trades. So far as I can tell your spreads are a little bit greater than some other brokers. For example, right now Interactive Investor is quoting sell/buy for MSFT with a spread of $0.01. You have $0.03. So on a 100 share purchase I will pay $1.50 less with Interactive Investor (so long as my trading credit is used, otherwise £7.99, and also so long as I have a balance of USD with them, so don’t have to pay fx). It will cost me $6 more on 400 shares. Degrio also has a smaller spread of 1-2 cents. Am I wrong? Of course on such a very large purchase I might use a limit order. But might it then be that my order is filled with another broker, but missed by you because your offer price is always going to be that tiny bit greater?