Going to deposit for both of these bonuses in March. The Pokerium is a B2B site and is offering a 300 euro bonus at 10X. Clearance in 30 days which would give you an additional 50 euros for hands played.

The Betsson site is a Pokerroom skin and is offering a 600 matching bonus at 7X raked hands. While playing for the Eurobet bonus at 3-6 limit I was clearing ca. 100.00 per 1000 hands played so I would estimate that this would clear at around 4200 PLAYED hands for 600 bonus so not too shabby at that limit.

will the betsson bonus be a pain in the ass to clear at NL50 SH, if i play 5-6tables?

I can't say with any authority on that libro because I haven't played much NL on the PR network. The points add up with 0.7 pts per 1.00 of rake or fraction thereof. For a 3.00 raked pot you can get 2.1 points maximum. The problem with the lower limit games is that the rake is capped at 1.00 so the max you can ever get per hand is 0.7 points so in that regard it could take quite a while. That said playing 5-6 tables at a time should still clear relatively quickly I would think. You also have 60 days to finish it I believe.