1 I dislike very much the fact of being dragged into a discussion of this kind. Problems of Russian Mail are universally known.
2 Circa 2004 two my parcels arrived to different post offices late and cut open. There was no valuables inside (I wasn't that naive.) Ever since I used express services (DHL, TNT, PE)
3 I heard similar stories from other people (late&open)
4 Recently I received two packages by Russian Mail. They arrived late (1 month travel time) but were not open. An improvement.
5 Still I (we) use tracking to pick a parcel as local offices don't notify receivers. They let a package bounce silently. Forewarned is forearmed.
6 Lady at the post office was very kind.
7 Before receiving my parcels I was studying a vk.com official community for computeruniverse.ru clients, which is full of horror stories and detailed official 20-step instructions on how not to get screwed.
8 The same applies to letters, unfortunately. A local letter may travel for a month (even town hall officials complain about that).
9 A letter I sent from San Francisco arrived to Yekaterinburg in about three months. Just before I arrived myself.
10 YMMV. Russia is a great country. Cheers.