I like that you have an option to renew after expiration if it is not renewed automatically by your provider as well! This makes sure we always get our renewal done in time so there are no issues with expired certs or invalidated ones afterwards because of lacklustre support from some providers!! The price point compared to competitors may be off-putting at first but once used this product can help save money over other products out their which don't provide automatic updates/renewals etc..
We use these services internally within my organisation - they ensure all SSLs expire correctly every year without manual intervention required hence reducing risk & saving costs along side providing us peace of mind knowing cert information is correct when needed externally too :).