They look good, but I prefer a box personally. I used to use the Irwin 'tool caddy' type of bags years ago, but they ended up so heavy they were almost impossible pick up, let alone move through someone's house. Plus I also had the usual 'Stanley' boxes of screws, fixings etc...
I have a few McGuire Nicholas tool bags that I use for a for particular sets of tools - hinge router & jigs, belt sanders, grinders etc... - but everything else (especially hand tools - made my own inserts) is in a systainer stack on a rollboard, and I've found it's made a huge difference to how I work.
Part of that is just me and where I ply may trade - it's rare for me to be able to park in the same street as the job, let alone any closer - but it's certainly a more efficient way for me to work.
And whatever works for you has to be good, right??
Cheers, Pete