"Hype" may be a bit strong of a word, but basically, all the praise and attention the layout was getting (from here, hi-games, keybr, that DDvorak site, etc.), and how it was supposed to be so much more comfortable and elegant to type on than QWERTY, and how it was superior even to Dvorak, and how it had so many "finger rolls," and heck, even a Slashdot story. This all lead me to believe switching to Colemak was going to be some kind of transcendent experience--that every word would flow sweetly from my fingers like honey and I'd immediately refuse to ever go back to QWERTY because Colemak was just OMG so much better. What I actually experienced was a layout that was better thought-out than QWERTY, but that still had considerable awkwardness about it. Common trigraphs like YOU, THE, AND, AST, ION, and ING were all rather awkward to type. The right pinky finger was hammered (seriously, QWERTY got it wrong by putting A on the left pinky--why compound that by also putting O on the right pinky? We're talking the 3rd and 4th most common letters on the two weakest fingers, here! There's more to keyboard optimization than minimizing same-finger!)
Saying one should spend a whole year with something they're unimpressed with after 40 hours sounds like a common trick I've seen employed by fans of certain book, movie, and television series. The argument is, dissenters don't appreciate the series simply because haven't spent as much time with it as the fans have. The end goal is either to dismiss all dissenters (thus increasing the series's positive mindshare), or to get the dissenter to invest as much time into the series as the fan has (thus increasing that series's total mindshare). Most recently, all the tween girls are using this argument with the Twilight series. "Don't judge the series by the first book/movie! You have to read all four books several times to really get it." Yeah, right--let's all go through the motions of being fans of something we're not fans of. *eye roll*
(Incidentally, I tried guitar for a week and was poor at it. People served me up heaping pitchers full of that "you can't know after a week" Kool-aid and I, in my youthful naivete, drank it: I went on to practice it for over a year, often several hours a day. The end result? I could (poorly) play parts of a few songs and a couple of box scales. Technically, I was little better than I was after a week. To this day I'm unable to reliably play the A-E-D-E open chord progression. One week was more than enough to prove to me that I didn't have the fingers/touch/coordination/dexterity/whatever to be any good at the instrument, but I thought maybe the people telling me the grass was blue and the skies were green knew something I didn't. Pfft.)
Personally, I think 40 hours is WAY more than enough time to develop a reasonable opinion about something as simple as a keyboard layout, especially one that's only 17 keys different from one you already know! Heck, even a few minutes can tell you a lot. Simply type some example passages as if on the new layout, but still using the old layout. Then, go back and type the character sequences that resulted, using the layout you know. That'll give you a pretty good idea of what the new layout would feel like were you proficient with it. I like to start with the "man from Nantucket" limerick, since it's particularly awkward to type on QWERTY (and that's saying something).
Anyway, I'm not trying to rip on Colemak, here; I'm just trying to explain (and defend) my experience with it. I have more respect for the layout than is coming through in this post: If I saw no merit in the layout, I wouldn't be here. (Although, perhaps like vVv, I think the whole ZXCV thing is a bit smoke and mirrors. But then, I grew up old-school, when copy was CTRL+INS, cut was SHIFT+DEL, and paste was SHIFT+INS, and we liked it that way, because we selected text with the arrow keys, dammit! Personally, I still do it that way; trying to select text with a mouse in Windows is like trying to herd cats across a frozen pond, especially when scrolling is involved!)