I still havent been in UUMO, but our company other a/c fly there fairly ofter due to owner demands, so i can share only colleagues views.
First, for some strange reason, you have to call to Ostafjevo to get weather information.
Secondly, if you think that approach and departure from VKO is pain in the arse, the UUMO is much worse. Approach and departures from there are mixed with Shermetjevo and Domodedovo approaches, so you will get plenty of short clearances and some strange vectors. But its probably business as usual in Moscow area.
And the major issue to us is tyre wear. The runway is concrete, and seems that it happily eats all the rubber from the tyres. And of course. its extremely slippery when whet.