Obviously when you’re spending under $200 for a price of gym equipment the materials are going to be somewhat cheap. The build quality is a little wobbly mainly because the whole thing is so light. I can pick it up with one hand and carry it around. It’s also pretty small, which works great for me because I’m 5’5”, I can’t imagine someone 5’10” or taller using this thing. With all that said, none of those things are so bad that it makes me regret buying it. It’s a great design and definitely a good value for the money. The only thing I’d like to see on it is another safety feature like if you can’t lift it up to place if back on the bar, I wish maybe there was a secondary catch lower to the ground that you could use if you needed to bail out after failure. But I don’t think that’s even a feature on more expensive version, so I guess that’s just my opinion in general about most calf raise machines. Also the instruction manual was hard to read. Felt like it was written by someone who speaks a different language and then used Google translate.I didn’t see anywhere on my manual that you needed to use a hex key to take the Olympic attachment off the weight bar so I ended up leaving a deep gash in the paint because I forcibly pulled it off of the standard bar and the hex nut scraped the paint all up. What can you do. Another thing is I wish the square feet had a tip-to-wheel feature to make it easier to move around. Yes I can pick the whole thing up and move it but I’d rather drag it. But the rubber feet are so grippy it makes if impossible to drag across carpet.In summary tho, it was still a great purchase, don’t regret it one bit, still would have bought it knowing what I know now. Great addition to my home gym