1. The "Y" position in QWERTY requires a long reach, and therefore I put there the rare letter in J. You propose putting there a higher frequency letter there, which also hurts the layout in many other ways (increases same-finger, increases home-row-jumps, moves letters from hand to hand so it's more difficult to learn, hurts the finger balance, etc.). The "PT" digraph is less than 0.1%, and changing it would involve of digraphs that are much more frequent (note that in your entire message and mine, it doesn't appear not even once, besides the examples we mention). Nevertheless, I did take this specific digraph into account. It's "QWFPG" and not "QWFGP" in order to avoid same-finger diagonal movement. If you're typing "apt-get" frequently, you can simply create an alias for this specific command, but it doesn't warrant a change in the layout.

2. The lessons are designed just to get you a basic level of typing. The lessons add just two letters at a time. You're not supposed to move to the next lesson until you feel you've feel comfortable with the new letters in the current lesson. I recommend not moving to the next level before reaching 30WPM with 96% accuracy. The first few lessons are a bit easier in order not to frustrate people right from the start, so it's normal that you achieve higher speeds in those lessons. Once you've completed all the lessons as indicated, I recommend using the games or typing tests in the Learn page to advance to higher speeds. Lessons that contain only the new letters will be very boring (e.g. ppp lll pl pl ppll llppp lp lp). Moreover, it's important to learn the keys within the context of their words.

Officially converted!

Until now, I kept QWERTY available as a secondary keyboard layout for all time-sensitive applications such as IRC. I just removed it from my computer entirely bacause now I have the confidence to type Colemak at an acceptable speed.

I just finished lesson 12 at 40 wpm and can hit 85 wpm on lesson 1! Going to buy a natural keyboard in a week or two to see if that helps me improve even further!

Wow... it only took four weeks for me to reach my old QWERTY speed, and I believe I can type even faster than before. So convert today! QWERTY sucks!

I am not paying $150 for a keyboard. That is highway robbery. The best gaming mouse money can buy only costs $60.

I find that there is a surprisingly small correlation between price and comfort. My current board is a cheap Chinese thing (Bzerk Blank) and it's just great. Maybe - just maybe! - you can feel confident you'll get quality if you pay up for it, but it's generally also available at a much lower cost these days. One has to be smart about looking though, and preferably try out the board in a shop if one doesn't want to gamble.

Some people insist on a microswitch feel, but I don't find that necessary myself. In fact, as long as a board gives a clear feedback so you're in no doubt whether a key has been clicked or not, I prefer it to be a bit light. And I think an ergonomist might agree with that? (Microswitches are wonderfully both clear and light, don't get me wrong. But they are expensive, and I think they are needlessly so for my keyboard needs.)

There's no point in buying such an expensive keyboard when you get get a comfortable keyboard for way less than that. It's simply wasting money.

I bought the same keyboard as AGK did, and it gets the job done very well. When I type on it, my fingers feel like they're moving on water. Its comfortability cannot be denied, and it's relatively inexpensive as AGK has pointed out.