We went to Sri Lanka just under a month ago and had 2 very very good drivers. We had 2 because one could not help us the whole time - so he recommended one of his friends to help us for the second part of the trip.
The 2 were very different - both equally good but depends on what you are looking for.
The first Shashi was soo helpful in the lead up to our trip - he helped me plan my itinerary and was very very professional and friendly.
Mandjula was a bit more casual - but a lot of fun to travel with. We are a early 30s couple and found Mandjula great! Nothing was too much for him - he really went above and beyond to please us.
If you want either of their contact details - send me a message.