One thing that's worth saying...
Russia is difficult in many ways, but it is very much worth the effort. It is a wonderful country full of charm and intrigue. Sure it's a logistical pain, but that also makes it memorable and unusual. I've been three times and loved every minute of it. The biggest surprise to me was how beautiful much of Moscow is. The monuments all over the place (first man in space, Victory Park are my favorites) and the 'seven sisters' are really breathtaking.
Good luck with your visa and have fun. Enjoy some inexpensive caviar while you're there.