I would like to echo that. Bought C4's ladder last February and that ladder fit perfectly - don't know what generation it was - sounds like 1st based on timeline. Been using it regularly on trips and haven't had any issues with it... I have noticed the ladder "very slightly" slips downward a bit when I first step on it, but I'm on the heavier side. That has been my only concern so far.
Prior-to and during purchase, C4 was very professional and responsive in handling my initial questions and status update request. This situation is a good example of strong customer support. (1) Acknowledged they messed up... they tried to fix a problem that inadvertently created a different problem. (2) After becoming aware of new issues, they reached out to those who received bad top plates. (3) In the process of making amends to the customer are sending new top plates, or any other form of additional compensation not mentioned in these forums. That process is what I would expect from other companies as well - at least the good ones. Anyone can look at
this other post from Caleb and see the length at which his company will go to make amends to an unsatisfied customer that received a bad product.
Long story short - would buy from C4 again. Still saving for bunch of other upgrades haha...