I have the RG35XX, install black seraph’s GarlicOS on it and it’s perfect. The stock OS is terrible in comparison. It runs everything very well and can output to a TV if you want. Also, I’d trash the no-name sd card it comes with and provide your own.

Also it will not play DS, forgot to mention that. As there’s no analog stick you won’t be able to play n64 either, but otherwise it’s incredible for almost every other ps1-era and earlier system.