It's a very reasonable fee in the world of investment management.
The best thing is you know the funds they are investing in and they are top-notch, low fees, and a reputable company.
Many people here will denounce anyone who would pay someone to do something you should be able to learn yourself.
Truth be told, maybe you try out the advisor for a few years, and once you realize how simple the strategy really is and also commit to being un-emotional and disciplined with your investments, then you can take over and quite easily replicate what they do.
If you are rich and prefer people to mow your lawn, do your laundry, clean your house, and cook your food, then 0.3% is a very reasonable price for what they are taking care of for you... and far cheaper than most other services out there which do the same thing.