We have the Mutsy too - I am 5'10 and DH is 6'3". Not the lightest pushchair around, but it is a joy to push as the handle actually extends rather than folds up (which most do), so you don't end up kicking the back axle if you have long legs. Its really easy to push even on the most uneven ground, and when folded is easy to lift.
DS is 2 and we still use it in rear facing as we all prefer that way round.