No problems in low light, especially with the illuminated red dot, i have the 3x12x50, i know the difference in price (illuminated/non illuminated) can be around £300, but it is definatly worth the extra, i took a leap of faith when i bought mine on the recommendations of a couple of mates, never regretted it, whilst out during the harvest i was finding foxes with the lamp on a clear night then shooting on them on the stubble just using the scope, if you are anywhere near kent, drop me a line and come and have a look before you buy?
The thin reticle also means it's a lot easier to zero and get a tight grouping as at 100m the cross hairs only cover 8mm of the target, zeroing on i 1" target at 100 is a sinch, whilst i love my S&B Klassik at 100 it is not as easy to get a consistantly tight group
Tikkat3