Probation period of 6 months is actually make or break after 3 months. If you are not hitting & exceeding targets from month 1 your life quickly becomes extremely stressful and management become pessimistic & micro-managers watching, listening and monitoring your calls & calendar.
Overall Glassdoor is a very difficult product to sell given a lot of prospective clients you a cold approaching dislike Glassdoor, have had negative experience using Glassdoor or received poor reviews that as an SDR you can not remove.
Work life balance, holidays and weekends are sacrificed to hit targets that can feel achievable.