Really bad. Manager doesn't care about the park, just the money, park doesn't flow, too many wee kids and neds. Just spend the wee extra bit of petrol/diesel and go to aberdeen, their park is a lot better.
The park is decent when empty, but gets boring as you can't go round the whole park when its got wee kids and you can only go in straight lines. Your child will most likely get started on by a ned as the park is situated in Douglas.
I would also like to say that if you do go to The Factory and you see a product you would like to buy that you should search around the internet for it as I can assure you that you will find it cheaper, as the place charges a lot more than the product should cost. And also don't use the vending machines in the reception, go up stairs to the caf , it will probably be a bit cheaper and the owner of the caf and his staff are much nicer that the manager and his son, the caf would be better of with the money as the owner of the building is making them leave the building even though their still paying rent.
Over all, just don't go to The Factory Skatepark.