Does no upfront planning for job and totally relies on subcontractors to do the work. Have no competent capabilities where drainage may be an issue. Replaced our 2600 sq. ft asphalt (impervious to water) driveway with an equivalent paver driveway (semi-permeable to water) and then claimed that discoloration, staining and sand being brought up from the base by excessive sub-surface water was due to ""unforseen sub-surface water"" and not their problem. If you live in the desert their product may work, but if you may experience periods of heavy rain find a contractor that understands drainage.
Cons: Do not know how to manage drainage issues
more