I am currently working for a StartUp, earning decently well. Unlimited vacation days and very high salary. I have an offer from one of the better known tech companies I always wanted to work for. However, this comes with 35% less salary than I am making now.

Any one experienced with this decision? I think it would boost my CV, and let me work with nicer people overall. I don't really like my colleagues, and it's a stressful environment currently to work in.

The difference is due to the fact that I work for an US based StartUp and not living in the US, so the exchange rate advantage applies here. The new company has an office in the country I am living in, and therefore slightly worse benefits and lower salary overall.