The $549 one from Amazon is the one I have and is totally set and forget. Hands off.
The other link you posted is for the Eco version. No humidity control, no digital read out, no turning cradle, no cool down option. You would need to manually turn it but you can buy the turning cradle...
Hi there @massoumicyrus :frow
I have the Brinsea octagon 20 advance EX. It is totally set and forget, all you have to do is top up the water under the pump a couple of times and that's it. It holds temp and humidity well and you really don't have to anything. Set it and forget until day 18...