It looks like you're new here. If you want to get involved, click one of these buttons!
There is a review of the Mirage Drive (as compared to native Watercraft's pedal drive and also comparing to paddling) in California Kayaker's summer 2010 issue, which is available online for free at http://www.calkayakermag.com/magazine.html
I agree with the comment that stable doesn't always make safe. Definitely learn how to get on the boat from a swimming position. Big, wide stable boats can actually be worse in waves than a narrow sea kayak, so keep that in mind.
....... on calm waters . Mild easy water and wind conditions that are pleasant to paddle in . Avoid paddling when the water temps. are 60 F. or below (cold water and/or hypothermia conditions are real and should "never" be ignored , read up and review it , and "believe" it) , and always wear your PFD ... avoid paddling around high speed power boats .
If you have some particular health condition that could be restrictive under certain circumstances , that will have to be your judgement/ballance call as always too .
These few things should keep you out of harms way . As you paddle more and more you almost unavoidably encounter increased water and wind conditions just as matter of course , being out there paddling and fishing . As the conditions you "see in front of you" at the time expose themselves , it's up to you what you do from there ... call it a "no go" today or get off the water , or choose to enter into the more challanging conditions and thier assocciated increases (incremental) in risk (it's a scale that starts at about 2 and goes off the charts - you can stay at 2 if you want to minimize almost all risk and fish till end of the time) .
Staying in the boat on top the water is the first objective . There is no reason to end up in the water swimming or worse if you stay in calm mild conditions ... go have fun , adventure , have a look around , start easy and choose your comfort or policy level from there . It's when you enter faster (moving) waters , rough waters , higher winds that control of yourself and boat can become compromised to degrees enough that put you into the water swimming ... avoid that if you aren't willing to risk it and you stay in the boat on top the water always (careful about standing up , only you know how good your ballance and reflexes are there , paddle craft rock some from side to side) .