As with many network methods, it depends.
When it first was getting popular customers would demand to use it as they thought it gave them redundancy. But then these would be the same customers that would have a fault happen on Tuesday, claim they will fix it on the weekend, then never fix it until they have a second fault and need to learn the routing of the network to find 2 problems. When used appropriately, and in the right types of equipment – it can be very handy. I prefer it in more localized usage – and not for the trunk line of a large system.