the biggest downside imo is it can be hard to leave because you’ll feel more connected to everyone involved. but they won’t necessarily be able to pay you much more than you start at even if you do stay. and you’ll be spending that time on more or less the same tech stack which can limit your growth and make it harder when finding a new job later.

id say it’s fine especially as an early job but strongly consider a new job after 2-4 years