It'll be adequate at best in low light. And you won't really know the difference until you can compare with a better scope side by side. But I agree, its probably fine for now. Honestly in my 30+yrs of hunting, I've only had a couple opportunities at deer where the light gathering ability made a difference...but its nice to have for sure.
Nikon & Leupold make very nice bino's for your budget. My money would probably go to Leupold, I have used both I just like them a little better...but both are great. 8x42 is my preference, but you could go 10x42
Then I would save up and get a new scope next year. A Leupold VX-2 3-9x40 is a great midpoint scope that won't break the bank ($300 or less).