The middle school enrichment GLLs are on offer from DD's middle school as a potential solution to her soul-crushing boredom.  I have my own criteria as to whether or not to accept this solution, but I cannot find many online reviews of these classes, nor much as to the time required for the classes.  The one comment I read about it on this board is that it appears as though the lessons might be synchronous (at a fixed time and day).  
Questions:
*Are the lessons well run?  Do they use age-appropriate pedagogy?
*How much time commitment is required, and how flexible are the deadlines?
*Did your child enjoy the program?   
*Are the lessons synchronous or asynchronous?