allthough this is 18 months after installation, it all went wrong from start. wrong levels, which we reluctantly accepted, and over 120 slabs laid with the incorrect full mortar per slab as per contract and manufacture instructions. most slabs are now stained and loose,some were rectified within in weeks off installation. however, a reputable company would admit there mistakes and this is what Nathan did. he admitted mistakes had been made and offered a substantial refund which we excepted. this must have been a loss to the company as 3 weeks and 4 men. although this was allso inconvenient to us and more cost to rectify by another company. recent feedback for this company is excellent so perhaps they've taken this problem as a learning curve. I have allso recommended Nathan on a few time over the last year or so. I'm sure the company will go from strength to strength. but , as any work being done, a contract is a must