I would say that there are sites other than GC where you can post your tree for free, and Rootschat for free where you can get lookups. What extra are you going to get out of GC for your 7.50?
I freely admit to bias. I came to Rootschat after I had been a member of Genesconnected for over two years. My ability to post there as a fee-free member was withdrawn overnight, without warning and without any notification or explanation being put on the site.
GC's customer care *was* abysmal (Making changes without warning, making their members pay for a new year after only 11 months' membership, member-to-member messages not being delivered, site crashes)
I would have to say that I have seen a faster turnaround of queries on here that I did on Genes, and a far greater willingness to bash away at brick walls/answer the simplest question. The moderators on here seem to see it as their job to make sure that no-one is left without a response to their query. Any moderation on Genesconnected seemed to be removing messages with f-words and anything with a web addresses.
I could not for example, have posted a list of useful sites for anyone to pursue, as GC removed any sting with a .uk or .com or an '@'.
I've finished slagging them off now. I'll be back at my census name indexing tomorrow.