Yes I'm going on the 4 week intensive course to get the CELTA certificate.
I did an online course, it was with ITTT. I found it a very interesting and a very good course. I had no idea of how the English language system worked until I studied the online course. I thoroughly recommend it.
So I have my online certificate, which looks really good and I am going to get my CELTA certificate. I will let you know how Ukraine is. All I know is it's going to be very cold and snowy in Jan!! haha, great stuff!!
Take care and good luck