We stayed here for a few days early in May 2016 for the first time.   Lovely well kept site as we expect from the Caravan Club with nice wardens.   Getting a bus into central Birmingham couldn't be easier, with a stop just outside the main entrance to the site.  The bus only goes once a day from there, but you do have the option of catching another bus (hourly I think) into Birmingham from closer into Wythall, but you have to take your life in your hands crossing a very busy big roundabout first.   We also had a meal at nearby farm shop restaurant, which was very nice indeed.  There is also a florists and a gift shop on the farm shop site, and at the time we went a circus was in town - something for everyone, we thought.