Product review (4 stars): ... about 6 weeks ago and so far it works great. I don't think the 3 size options are ...
I purchased mine about 6 weeks ago and so far it works great.  I don't think the 3 size options are necessary because there really isn't that much difference.  It is slower to start than others I've had in the past but it's not a problem just an observation. Overall I'm happy with it.