This thread makes an excellent read.
I hope you are happy with your new sub. Personally I'm not a fan of subs when used in a stereo set-up, but perhaps it's just because I've yet to hear one which really integrates with the main speakers.
And as for the speakers, count me in as another fan. I don't have the SEs, only the standard 794s, and I'm more than satisfied with them. Mission went through a period of receiving poor reviews, though I don't know why: my ears never heard anything wrong with their products' sound. My previous speakers - also Mission, M73 - were bought when the press were raving about Wharfedale Diamond 8.3s (iirc), but compared to my Missions, which received less favourable reviews, I found them shrill and lacking bottom-end.
'Each to his own' is definitely true for HiFi. If it sounds right to you, then it is. We don't all have the same sonic tastes, or the same ears.