The CFW used by the DSTWO+ for 3DS games was based on an outdated ReiNAND and hasn’t been updated in years. There’s no reason to recommend the cart for 3DS games because the software does that feature is outdated. I did still recommend it for DS games, it’s still the most powerful DS flashcart on the market. I don’t see how anything I said was wrong or outdated
They can also run gateway mode, though you may want an ntrboot card and a nand backup handy....