anyone tried the babybjorn travel crib light?

for the next 6 months we will be living at 2 different locations (3 nights at one, 4 at the other). I have a lovely (expensive) cot at home already & im trying to decide whether I get another cheap cot & mattress, or buy a portacot for the new location. my ds is currently 4.5 months. cant seem to find much info about sleeping them in the portacot, other than to make sure mattress is clean and firm?