Alright, let me share my thoughts on these Ireer shipping boxes. First off, the adjustable size is a game-changer for odd-sized items like paintings and mirrors. I shipped two large artworks internationally, and these boxes were a lifesaver.

But here's the thing – you NEED to reinforce them. The cardboard is thinner than expected, so bubble wrap and extra tape are non-negotiable. Some reviewers called them 'absolute trash,' but with proper padding, they did the job for me.

The assembly can be tricky if you're not used to DIY packaging. It's basically like building your own box from flat panels. Takes patience and way more tape than you'd think.

Price-wise? They're definitely not cheap for what you get. I'd only recommend if you're in a pinch for custom sizes. For regular items, standard boxes might be sturdier and more cost-effective.

Pro tip: If your items are super fragile, consider doubling up the boxes or using them as an inner layer with another box outside. The adjustability is their strongest feature – just manage your expectations on durability!