PetPlan is excellent. I've been using PetPlan for about 3 years now and highly recommend them. Here's why:
1) Submitting claims online is super easy via their app
2) I can check on status of claim online
3) All claims are processed in a timely manner, usually 1-2 weeks
4) If you have questions, there is always someone who answers the phone.
I initially reluctant to get pet insurance because it seemed like a waste of money but I'm so glad we did! My boxer is over 8 and now and pet insurance has been a life saver.