A major test this weekend for the new Harry Rowland wheels - towing a Chariot child trailer with baby inside. No problems yet after 4 commutes with alot of curb bumping and the towing. Whilst heavy, the wheels are definitely strong and smooth. I reckon it'll take about 3 months for a full long term test but so far I'm impressed.
As far as the trailer goes, it's amazing! Really comfortable for the baby with good safety harnesses. Folds down and wheels are removable to fit in the boot. It is a bit heavy but that just adds to the training!