So far they've been awesome. I was tossed up between Hagerty or Grundy, Hagerty was able to setup a policy that day for me and get me covered with a binder where Grundy kinda just ignored me. Well i got a call after Hagerty called with a binder for 30 days of coverage.
I've heard Grundy is a little cheaper, both are about the same. But I only pay $242/year and its guaranteed $25k coverage.