I and my family changed to “Hits” a couple of years ago, the first benefit is that a call to other Hits mobiles is free for 5 minutes (15c connection). I am on a 5c/minute tariff, which means 5c/minute to ANY network. Hits also has a very good roaming service and very cheap international calls, especially to landlines. One thing that I find very good is the online account which provides you with a lot of information including your call records (when I was with Movistar PAYG I was convinced that my credit just disappeared!).
Hits now offers ‘Internet’ at 5c/minute and also automatic top up, i.e. set a minimum limit and an amount to top up by, there is also a maximum usage limit.
Also customer support in Spanish or English.
I’ve been pretty satisfied with Hits, so much so that I haven’t really looked elsewhere, although I do believe that YOIGO offer a similar plan…
...and, No, I don’t have any association with Hits apart from being a customer!!