New flash card

I went onto a online flash card shop today and I spoke to someone about why my Acekard kept freezing on my new DSi XL and she told me that it is not compatible with the new XL. So I bought myself the R4i SDHC which says on the teams website that it runs perfectly on the new DSi XL! Are they any good?

I thought a few guys on here have their Acekards working on the XL.