I'd agree with you that this thing is a bit complicated and I find you have to do too many "tricks" to get a good tone. Had I not needed something like this for my weekly church gig, I'd probably never have it.
That being said like anything, you will have to put time into it to get something out of it. I got the POD b/c there were lots of tones on-line and my thinking would be I would just download a bunch and just use those. Well that is an option but it just didn't work for me. You have to wade thru too much crap in Customtone to find good stuff.
It came down to selling it and finding an alternative or learning this thing. I chose to learn and guess what it didn't take too long once I started being serious about wanting to learn it. However this thing is massive and I decided to start real simple when learning it (see below).
Some say use the HD Edit software to learn on, and that is valid. Since I'm only ever playing this thing on stage I did not go that route and instead just sat down one day in the living room while watching a baseball game and just farted around building patches w/o headphones or a guitar. That went a long way to learning the interface and now I can do anything quickly on the unit (except dialing in delay or controller assigns...those are way faster on the computer). I would just give myself scenarios where I would approximate a famous guitar players rig. That is a great exercise for learning the interface and since I wasn't on the floor or bent over with my guitar in my hand it was an enjoyable experance.
My best tip: Find your go-to amp (mine are the Bassman BRT PRE). Using a blank patch go thru all the amps by themselves. DO NOT IGNORE PRE-AMP ONLY VERSIONS. They are totally different and IMO better than the full models. To my ears they are a lot less processed sounding. Once you have a go-to amp you'll have a baseline to build new patches from. You can also use CustomTone at that point to find out what others are doing with your favorite amp and that will give you some ideas. I quite enjoy the unit now that I have a handful of amps that I know how to dial in.
My second best tip: Use the looper to build your patches. Record a phrase, put the looper in the front of your signal chain and then you can just go to town editing with both hands on the POD or computer. This makes building a tone much faster and you can get to writing/playing quicker.