Had Paraco for a number of years until I found out about other companies that offered tanks without rental fees and a much lower price per unit. I switched to another company, called Paraco to cancel, then a few more times to pick up their tank. 2 years later they picked it up without notifying us then sent us a bill for near $150 calling it a restocking fee. I would never use them again, and am telling everyone I know how outrageous their charges are.