Salary: Because of the work-life balance provided, there is often a discrepancy when it comes to hikes. Based on my experience (in my division), the average % is usually single digit with some exceptions. Don't expect higher % (anything above 15% is rare if you are already earning in double digit). There are no performance bonuses or mid year hikes. The hike cycle is also different which is something you need to look at if you are planning on investments elsewhere.
Growth: Expect a very slow growth. There aren't many interesting opportunities. The average age is around late 30s and early 40s with very less people eager to explore and learn new technologies. Anything new you want to explore or study, getting the access to it or getting yourself registered to trainings that is out of scope of the project you are in is very frustrating at times.
Adoption: Adoption to cutting edge, current industry standard technologies is very slow and hard to push for. There is lack of interest in adopting new technologies because of the complexity of existing product lines that have been there for ages and each feature increasing the complexity of the application it is often very hard to simply jump to another team.
Expertise: Everyone expects you to be an expert at something, Senior employees often do not entertain junior employees requests or queries unless their manager gets in touch with the senior employee. Although they are trying to diversify this by adding younger less experienced employees, the transition will still take time.