New to Home security, need opinions

[ATLien_0]

Hey guys. So I'm looking at buying my first home and naturally I'm already looking at security systems and am a complete newb at all these wireless systems. My parents have used adt for years but I'm staying away.

Looking at Nest Secure, Ring, and Simpli Safe. I know SS is highly rated.

I really need coverage for 

2 exterior doors

1 maybe 2 keypads

1 door bell cam and 1 maybe regular camera

Also have a separate non attached garage that I may want to secure .

 

Have been leaning with Nest or SS , Ring I'm not as familiar with their system but I'm also not an Amazon user much. 

 

I also am on the fence that SS puts their app and Google assistant usage behind their most expensive monthly payment 

 

Opinions ? From easy of use, payments etc