I would like feedback on the most reputable providers of the 4-week CELTA course. There are tons on the Internet and no way to assess which ones are good. I understand the CELTA curriculum is the same no matter which city you take it in but should I expect better quality for ones taught in London or even Cambridge? I have a BA in English and an MBA. Will a 4-week CELTA make a difference in my job prospects. I don't have formal teaching experience but certainly acted as a teacher doing IT consulting and project management for 20 years.