Very little use, but everything still appears to be in decent condition, and the only way to verify the quality is by consistent and active use. Considered for 5400 Got pros: Tight case with locks, ergonomic arrangement of tools, they sit nicely and do not fall out, absence of bad odors, extension cables do not fall out of the ratchet, good design, and the box in which the set comes. All of these features come standard. Cons: After some time had passed, the insulation on one of the extension cords began to deteriorate. Up to this point, it's pretty covert, but I haven't even used it, and the case is now without any evidence, so here's the quality: