This is a pretty busy border crossing, as most in the Baltic States (I've been to two in Latvia and three in Estonia, plus one between Kaliningrad and Lithuania).
Then, the borders with Ukraine are a bit more complex. Many roads are now blocked by the conflict in the Donbass region, and the most important ones (M2 to Kiev/Kyiv and M3 to Kharkov/Kharkiv) have amazing long queues, mostly of Ukrainians. I spent 13 hours waiting to go through the M3 check point, re-entering Russia. It was just too much people, and they were understaffed.
Then I drove also the strange border at Adler going to Abkhazia. There are no stamps there, as Abkhazia is not recognised by most of the countries, and they can't stamp your passport, neither can Russians said you left from Adler. But there are customs formalities. It was pretty quick.
And then the border with Finland, massive, and the less friendly. Also very long queues, and got "randomly" checked for narcotics.
It seems odd crossing on a rural area (Svetogorsk, at the Leningrad Oblast). Was a strange situation. Myself, Argentinean (with work permit from Russia), with a car from Montenegro, with a friend from the US, with a Russian visa he got in Osaka (Japan), going to Finland on a day-trip. We didn't make it return on the day, we spent a night there, and it was by far the most expensive night ever!
Final trip was 7796km, 569l of fuel (aprox 460Eur) and only two tolls paid: one on the M9 entering Russia (3USD) and other on the A1 (Bosnia) of 4USD. No need to pay the Hungarian nor the Slovak vignettes. 22 days of hotels, room rentals, hostels and even a motel (those which charge you by hour)....

Cheers
Eielef @MOW (glad to be back home)