I have dealt with RO-man since I started WFP and have always found them to be courteous and helpful. Deliveries have been on time and complaints have been dealt with promptly.
I even e-mailed Neil (can't remember his surname) late one Saturday evening for advice. I got a reply the same evening
I bought a 40-40 system from them, the motor mounting foot for the booster pump was broken, they sent me another complete motor/pump assembly which arrived the next day, with a prepaid returns label to send the broken one back.
Never had any problems whatsoever.
I know they don't answer the phone, but e-mail response is excellent