While I'm a little disappointed in my pay, I get a ridiculously flexible schedule, work from home whenever I feel like it, I put in some extra work last weekend so my boss just told me to take tomorrow off (which is a common occurrence), the work I'm doing is 5x as interesting and I get to try my hand at a breadth of tasks. I also ended up getting a fantastic title after 6ish months as I was hired in under a pseudo title and they had the mentality of "show us what you can do." There's always new/more difficult tasks I can jump in on when I'm ready.
My other two offers did not have flexible schedules, one had no work from home and the other allowed it sometimes. They were both clearly defined roles, despite my interviewers telling me about all the cool projects I "might" get to do l've learned to never consider any "mights."
I think I'm another year or two my pay will be higher and I will have a more interesting career than if I had chosen one of the ther offers.
I don't expect to get anything from this startup other than experience and a paycheck. And the experience definitely makes up for the lower pay.