I am using vodafone sim card for last 3 year.
This is best mobile operator. sometimes before its known as hutch. but it is known as vodafone.
Really my experience with vodaphone is amazing. I never facing any problem with vodafone.
Its sevices is very nice. its cusutumer care services is also very good. if you have any problem you can easily contact custumer care. some time I have some issue then I call vodafone custumer care. they help me easily. all custumer care operator are very honesh and good . they provide better information and solve any issue. overall its a good mobile operator. I would recommned it for you