$5 for 4(ish) games each month is a pretty good value.
Savvy CAGs pay closer to $3, or $0 if they utilize Microsoft Rewards.
It is a good value, and I'm currently paid up through early 2020 thanks to MS Rewards. I'm generally happy with the quality of both GWG and PS+. I merely object to the idea that people shouldn't complain because it's free.