I'm looking to get a microscope to learn how to do my own fecals (finally). Could any "experienced" person tell me if a monocular microscope, unknown brand, 5x 900x would be suitable? There is an ad with one listed for an unbelieveably low price and I would love to jump on it if it would work for me. Comes with a 3way projector hood and some slides as well. Thanks for any input!