we drive a Wagon R+ 1.3 at home and these are very good roomy vehicles. You sit upright and have a good view over ordinary cars and they will take 4 tall adults.
It doesn't look like much, but I would say it's a great little rental car. The tall body means there's plenty room for 4 adults but it manages to feel quite stable through the corners. Mine was the latest model which is probably a big improvement over the old one, and it had very effective air conditioning which is why I've rated comfort as excellent. The small overall size combined with decently precise PAS and good brakes makes it easy to drive on the twisty roads. It's very economical as well so don't bother filling the tank. The only downside is a very small boot and the engine is a bit weedy, you can feel it slow right down when you switch the air-conditioning on!