ROI of washer / dryer in multifamily 6 unit?

[Chris Anderson]

Looking into the option of installing a pay to use (coin/card) washer / dryer in a 6 unit multifamily. This could potentially add monthly income, but also be a benefit and convenience for tenants.

Investigating machines that accept electronic payment only as I am out of state and this would remove the need for onsite collection of coins.

1. What are you charging per use?
2. What is your ROI?
3. Any brand recommendations?
4. Is it worth it?