I signed up about a year ago. I got a delivery after about three months, and a second about three months later. The first one was really good chips. I let them sit until this spring, then spread them nice and thick in the garden. The weeding chore has been easy this summer. When I renewed my request, I checked the "I'll take some logs with my chips" box. When I got my second delivery, I got a big load of HUGE logs with about two tablespoons of chips. Most of the logs were not good enough to use for firewood, and that load was really just a job for me to saw them up and put on the burn pile - I suspect that the crew that dropped that second load just wanted to not have to deal with those gigantic logs.
I've renewed again without the 'logs' option, and it's been months without another drop. My son has had his chipdrop request in for at least two years, and has not gotten a drop.
