This is a great coverage for unexpected cases. For a puppy in their first year I would recommend looking into maybe complementing with an insurance for planned procedure (immunizations, neutering, etc.). For unexpected events they cover 90% of the claim excluding the vet fee (so always prefer a vet over ER, since ER charges can be over 100$) that if you can of course :)
Oh and they are super super fast!! You will get an email confirming the claim was approved within less than 24 hours.