Here is a link to a similar thread:
http://www.biggerpockets.com/forums/92/topics/109793-national-real-estate-insurance-group---want-to-know-how-legitimate-they-are
It would be helpful for more BP'ers to jump in with their experience with NREIG. I have been a customer for over a year, but have not filed a claim and I am wondering the same thing regarding claims.
My biggest concern is the lack of account information. To make a change, you have to submit an online form where you get a generic email reply that the form was received. There is no way of knowing that the changes were made till you get your next months statement. I have been told that NREIG is working on a better user interface (I have been hearing this for over a year).
Other than concerns regarding claims and user interface, I really like their program and the ease of making coverage changes on a monthly basis. But there is no reason for not having a better user interface with todays technology. I should be able to log into my account and make changes and see the result in real time.