Info on these String Quartets?

I am debating between two string quartets, The Millennium Quartet and another one with niamh varion-barry (have no idea the name), I live in the US and have never heard either of them play. Does anybody know anything about them and likes/dislikes? Thanks!

the only 2 SQ's I've heard were The Praga SQ and the Astral SQ, both were amazing and are Suppliers here. Sorry I cant help you with those 2 options.