Is it a good cart? I'm intending to buy one for my DSi XL on firmware 1.4.5. Is the RTS function any good? If the card is bad, any other, better flashcart? (The flashcarts available to me are on this website: https://www.okazii.ro/cautare/r4.html# , you may not understand the language, but the card names are all understandable) Thanks.