We hired Putu for 2 days while we were in Seminyak in June 2011. As we were a group of 3 girls, safety was our foremost concern and Putu proved to be a reliable, friendly and safe driver.
His charges are reasonable (in fact slightly below market rate) and he speaks good English so communication was never a problem.
The best thing about Putu is that he is flexible about the itinerary - he gives good and frank advice about where to go (and recommendations as to cheap shopping and food!) and what tourist traps to avoid, but leaves the decision entirely to us as to what to do and where to go.
Highly recommended if you are looking for a trustworthy driver in Bali.
This review is the subjective opinion of a TripAdvisor member and not of TripAdvisor LLC.