Considering leaving Giffgaff again, possibly moving to 3, as they are the only other network with a reasonable deal. Reason I'm considering it is there seems to be a lot of trouble with response times from agents, not that I have ever had a problem, but I use my phone for work so can't be without a phone days on end. Is the long response times going to improve? ( time of year)
I think you'd be silly to leave if you've not encountered a problem - the vast majority of people don't, and it just appears like a lot of people do because a big chunk of the customer service here is on the forum. I understand where you're coming from, but giffgaff has so much going for it, and the people here are much more knowledgeable than the people you'd deal with at 3 (or any other network) who are essentially reading from a script when you phone their call centres.
Hopefully as I'm sure i read that new agents are being recruited. Also remember that there are educators. A word of advice: 3 is the worst network ive ever experienced, shoddy indian customerr service; rude and uunhelpful!