At the risk of this sounding like advertising - one of the things that you have to consider for any 'simulator' is what are you going to use it for? If you want to use if for training leading to a licence of any sort, it needs to be approved by your regulatory authority.
Outside the Advanced Aviation Training Device (AATD) approval in the USA, this approval has to be applied for by the operator, who must then demonstrate that it meets some detailed criteria.
From experience, I can tell you that the process of approval is neither quick nor simple.
Without the approval, you can still do a lot of neat things, and get a lot of learning out of a device, but you won't get any credit towards your licence.
And without the credits, 'proper' flight schools aren't really interested.