Richy, it's economical from a fuel efficiency standpoint and from it's lower power demand. Again, mine's a 22' and I only have a 90hp and it's able to run at about 35mph with full gear and a couple of folks on the boat (and the t-top I've got is pretty heavy duty, adding a bit more weight). Couldn't swear on a Bible the exact mpg I'm getting but has to be around between 5.5 and 6. Most of my trips I run out to depths between 20' and 30' to snag a few grouper and cobia and then come in and run to multiple oyster bars in order to catch reds. Best guess is I usually run at least 30 to 35 miles and rarely does it take me more than about 6 gallons to top my tank off.
The 22' handles bad chop quite well due to the flared bow as long as I'm cutting the waves. Part of getting the great mpg and lowered power requirement is the narrow and curved beam. The trade off is that you do want to watch the way you pilot the boat to avoid purposefully sitting/riding sideways through the waves. I've been out in some nasty stuff and NEVER had water roll in, but turned sideways you WILL do some rocking and rolling and the bigger concern I've had is keeping my footing if moving around.
Also will say I LOVE the dryness of the ride the flared bow provides. Been out in many different styles of boats but can't recall a one that gave me a drier ride.
Not going to tell you it will go shallow into 2" of water, but for a 22' boat I put it in waters between 1.5' to 3' on a VERY regular basis. Have gone a bit skinnier a few times by trimming up the motor and poling, but honestly just haven't felt the need to often go skinnier - got a beat-up canoe I use for times I get any itching to explore creeks when grouper season is closed and I want to get REALLY skinny

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Really do love the diversity it provides.
BBG
"The Marines I have seen around the world have the cleanest bodies, the filthiest minds, the highest morale, and the lowest morals of any group of animals I have ever seen. Thank GOD for the United States Marine Corps." Eleanor Roosevelt, 1945