heard mostly positive feedback on them, it's a shame though tastyworks don't disclose their execution quality and price improvement for the end-user like Fidelity and Charles Schwab do.. even robinhood does that.

the other concern about Tastyworks is that they have been recently acquired by IG Group (UK CFD provider) and might get greedy with the price improvement suffering. IG's poor fill quality is their modus operandi in the UK..