A lot from TC's interface is borrowed from the old and trusty Midnight Commander in Linux. Also the keys function practically the same.
This is all nice and dandy but I don't think that is a good thing. In my own experience, Putty and MC are very helpful when doing some file managing on a Linux machine (using a Windows PC). But I honestly don't know why the key-layout is like it is.
Speaking for myself, I hate this layout...and TC uses the same layout. For a Linux guy that has to work on a WIndows machine, the TC key-layout will feel like 'home'. Well I'm sorry, but I will not voluntarily suffer this key-layout using native Windows software. I know for a fact that I'm not alone in this.
Selecting of drives in TC 'feels' and functions very much like windows 3.11. There is a good reason why computer users hailed the interface from windows '95 and above. For me that method really does not compute anymore.
All this gives makes TC not "normal" (again speaking for myself). TC's look and feel works for a lot of people and that is a good thing. For me it does not work at all and almost any alternative will be used by me before I even consider to entertain a thought about installing TC, let alone using it. Again, I know for a fact that I'm not alone in this.
Having used DOpus since it third edition (yes, on the Commodore Amiga home computer) you will have an extremely hard time convincing me otherwise. Yes, I know you can change the look and feel from TC to a great extend, expand it with plug-ins etc.,etc.
Here in South America Linux rules and I get 'ridiculed' by my friends here (almost on a daily basis) for using DOpus while they are TC die-hard's. But I honestly feel that I'm way more productive using anything else than TC. If TC makes you more productive, all power to you.