They're very good.
HLJ's SAL option is very cheap for small items BUT you have to wait 3-4 weeks sometimes. Recently, I just received my Revoltech (they're great) from HLJ and that was after paying mid April. Very slow.
An order I placed awhile ago was very large. I ordered a very sizeable box, about $450, worth of toys and shippign came to $80 odd. I was very satisfied. They communicate very well and look after you after the sale is complete too. So yeah I'm very supportive of them.
I do agree w/ Griffin tat they overprice some stuff. I you look at Movie Voyagers or Deluxes they definitely do. However, I don't really care b/c the final price once converted to AUD is still cheaper than we can et retail here on sale. Which though sad from an Australian viewpoint, is rather fortunate from a fan pov.