Hello, we are traveling to London in December and staying for three days, me and two children (9, 11) We are arriving Thursday afternoon and have Harry Potter Studio Tour booked for Friday and Legoland Windsor on Saturday, flying out on Sunday morning. We are staying at the Premier Inn Heathrow. I am considering renting a car for 4 days unless there is a more convenient option to get around. From my understanding public transport is not easy to these two venues and cab is quite pricey, but I can be mistaken. I am reading reviews about car rental at Heathrow and I am a little taken aback by the number of complaints. Do you have any advice what mode of transport to use, that is not too time consuming and expensive? Or is car rental my best option? Thank you!