I like the way this doesn't need constant attention. Just add food, some water and turn the knob. Heats up fast and operates silently (apart from the odd "hiss" as it comes up to pressure). Come back when it's done. Very good for chicken curry (took 25 minutes plus ~5min to heat up) for lovely, tender chicken legs. Lamb shanks took about 50 minutes to be as tender as I like them - which is the only slight annoyance as the machine timer only goes up to 30mins. Solved by resetting the timer part-way through cooking so not a huge problem.