I guess this applies to other domain registrars too but it is kind of annoying to get your domain renewed automatically for your original domain registration period such as 2 years where this is not necessary.

I register some domains for 2 years initially for SEO reasons and after that I would be happy with renewing for 1 year at a time but the auto-renew kicks in with 2 years of pre-paid registration fees so it is a waste of money IMO.