Yes we do. Bought a set for each van, thought it a good idea, explained their use to my employees.
They are used most days around raked out pointed brickwork, any sharp corners and car tyres.
Definately prevents damage to micro bore hoses and when used properly with a bit of thought save time and effort, and we haven't lost a slip and slide unit to date.
They are a decent price and they do a good job.
Chris