I like that at any time you can get in touch with their team to have your project designed or worked upon, they are very friendly people who will make sure everything goes well! Their prices aren't too high neither do i dislike anything about them as such but sometimes we just need things done right away so this might not be an issue for me though it's something worth considering if ever needed :) They also offer freebies which means no wasted cash when using there services!! Just try out what suits best since each service has its pros & cons depending from one person (or client) requirements/needs etc..
Nothing really bad thus far only thing could maybe improve would probably come down price wise because some projects require more than 1 designer working together hence increasing costs. Working closely wth clients where designs were required fastly enough was my main reason behind going through coup. The benefits include quick turnaround times due.