Is this an ok roaster?

I've never used the iRoast, but my biggest comment is that if you are planning to roast up to 2 lb per week I'd say that the iRoast is a somewhat expensive way to learn roasting and/or see if roasting is in your blood. If you end up not liking to roast then it's nearly $200 gone. If you get the bug then I'd hazard a guess that you WILL want to upgrade capacity, if nothing else.

Take a look at the FreshRoast8. It has a 3oz capacity vs up to about 6 oz for the iRoast. So it's similar to an air popper but it's a much cleaner set up. So again, my comment is based on the assumption that you may ultimately be spending money twice, so maybe save the $110 or so up front.

Other than that I have always heard that the iRoast works great, if you don't mind the noise. On the other hand I guess you could settle in to 2lb/week with the iRoast (if you have the time) whereas it would be a full time job with the FreshRoast.