Do you like leaning the bike over and going round flat corners with any degree of speed? The Rubber Queen's pretty good at everything else but they really surprised me with the lack of cornering grip. Straightline, great, volume, great, rolling resistance, pretty good. Cornering grip, no. Not good at all. And it's not like I'm heroic in the corners so if I can't trust them, there's something lacking
Just gone back from those to a 2.35 stick-e nevegal which has less volume but goes round the same corners faster without a hint of slippage, is probably slightly better gripwise the rest of the time (though hard to compare, the RQ does find grip in surprising places) and maybe a little more draggy, but then it cost about half as much.
Oh, one other thing, if you have any thoughts of doing tubeless… I did get mine to go airtight-ish eventually, but it took a bit of faff and a heck of a lot more sealant than normal. Not an ideal tubeless tyre