Any use indicates a legal release of Guru Communications, Inc. from responsibilty of unforeseen consequences incurred by such use. That depends on what qualities and features the telescope user values most. They are reliable and easy to use. They provide sharp, well-contrasted images and, therefore, are better for planet study. Refractor telescopes are for those that value ruggedness, simplicity and ease of use more than light gathering power.
Reflectors have, in place of large, expensive, heavy lenses, mirrors to form the image.
A curved primary mirror collects incoming light onto a flat, secondary mirror. The image is then reflected out of an opening on the side of the main tube and into the eyepiece. Therefore, the focal length of the unit can be long while the main tube is compact and portable. The telescope itself also becomes heavier and bulkier. Delicate surfaces of the mirrors can be exposed to air and dust because the telescope tube is open at one end.