The Neo and Neo2 are silent, all you will hear is your drive chain. Very responsive and any little ease off in effort will see your power drop. They work well in ERG mode-as long as you use inner chain ring and easier gearing. The resistance and power will outdo any rider including professionals with 25% gradient and 2200W
I Swapped mine out for my failing new Kickr and so far has been perfect. They have lots of trickery software, if you want to analyse pedal stroke etc.
I understand you can get good deals on Neo/2 from
Halfords with discount codes. Just need to check stock levels