Instruction: Given the user's review, identify the user's sentiment from the listed options. Answer using one of the options.

Input:
I got my first all American Canner and cooker well over 25 years ago from the factory in Manitowock, WI.  I have 2 of them.  They both have a different kind of steam release valve than pictured here.  Instead of the graded pressure top piece, I have the kind with the screw down knob with the top that just flips down.  I've canned thousands of jars of food and can admit, if this canner is taken care of, it will last you for a lifetime.  Just make sure your stove is level so the canner remains level so the top and the bottom will fit evenly and not warp, and you will always have a good seal.

IMO, one of the wonders of modern age.  Something made VERY well, is VERY serviceable and, if taken care of, will outlast the person doing the canning.  Absolutely amazing we have a company in America that can and is still willing to do this!  It's refreshing to the soul and a great piece of equipment that can be used by the person who is serious gardener and cares about their health by canning in glass!

I use 3-in-one oil on the threads of the knobs to keep them working the best, and also put a washer on all the knobs so the washer rests on the top or lid part to help the knobs last longer.

As far as using it on a glas stove top, so much for innovations in stoves.  I prefer older makes and models--either gas or electric.

For the visually impaired or anyone to use something this heavy and bulky on a glass stove top, would be very risky, IMO.  I don't think it's a piece of kitchen equipment that should be used on glass, because whether it's hot or cold, when it's filled,  it's very heavy and has to be moved with care to another burner that is cold and has to be allowed to cool.

Options:
A: very positive
B: positive
C: neutral
D: negative
E: very negative
Answer: A: very positive