It's not an easy mountain but it's of a substantially lower degree of difficulty than the high Himalayan peaks. It's harder than the lower Ecuador volcanoes for reasons of elevation and other factors and has glaciers, etc. like they do but the weather tends to be better than mountains much further north or south. (I've climbed other volcanoes there but only made it part way up Chimborazo.)

ADDED: i.e. so it's not unthinkable for a person in good physical shape who gets some winter hiking experience, has a fair bit of experience hiking up mountains overall, gets some glacier skills, and goes on a guided climb. Of course, people react to altitude a lot differently.