Service base to Product base switch is good or bad?

It doesn't matter if a company is a product base or service base. As a software developer, you need to ask yourself. Are you learning? Are your growing - technically, and professionally. Are you learning something new. Is your product manager let you read new technologies? Do you have enough time to discuss new ideas with the team? Growth is more than just coding. It should be communication, business, personality development, and networking. I always advise young guys to learn as much as you can and try to work for a company that focuses on your learning and growth and gives you enough problems to solve. It should let you think outside of the box. Cheers!