I have one and it feels more like a toy than a proper watch. It’s like one of those fandom figures, only this is for watch enthusiasts that love the Speedmaster. If you see it that way and collect them, display them, and occasionally wear them, then they are a great option. If you mean to use the watch as a regular wear or even main watch, then I would not recommend this watch due to durability and reliability.
No particular limit. It’s about the quality of the movement not type of the movement. As long as the brand is doing a quality job and using quality movement, I don’t have a problem with high price.