Excellent system and job.
I chose B-Dry because as an engineer, I judged their system to be the best after researching the major competitors. They installed a gravity drain waterproofing system in my basement, and I was very impressed with the quality of their work under rather difficult circumstances. They were also very cooperative and accepted my suggestions willingly. I have not had a "gulley washer" since it was installed, so I can't attest to its effectiveness, but I strongly believe the system will completely eliminate my water leakage problems. Their price was not the lowest, but I believe their system is superior, at least in my case. I definitely recommend B-Dry.