These PSAs are helpful, but I went down the route of looking for a set on ebay and ended up paying £260 for an as new 2 piece Industrial set (plus a bit of fuel to collect it).
Having used it whilst I’m doing a bike build I can’t believe I didn’t get one years ago. The ability to have all of my tools in one place, and easy to find, has completely changed the pace I can work and how often I’m now able to do just 30 minutes DIY / bike maintenance at a time, because I don’t need to spend 20 mins digging out the tools / finding what I need.
The industrial one does have a few “deeper than the others” drawers towards the bottom, but only the bottom one could be considered to be a deep drawer.
One thing I’ve noticed is that, on the top unit, if you push the drawers in all the way, they “lock” shut and you then need to open the top lid, to unlock them. I’ve learnt to push them in almost all the way in and it’s been fine.
I’d certainly recommend them (either from Halfords on on ebay) if you’re sitting on the fence about a set.