Hello All!

I am new to this forum, so please forgive me and feel free to redirect if I am posting this in the wrong place. I am just starting to get in to mountain biking. Nothing crazy, but I live in New England and want to be on trails in the woods. I am looking for a used bike for my sister to join me. She doesn't want to spend a lot of money. It doesn't have to be fancy, but reliable for a newbie and preferably something that can be upgraded. It's slim pickings where we are right now due to Covid-19. I am looking at a Raleigh M60 for $225 that looks to be recently tuned up and a Specialized Jynx for $175. The Raleigh says theit was recently rebuilt and tuned up and has new gears/shifters, brakes, tires, and rapid fire shifting. I tried to include photos, but it says I need 10 posts first. Do you think one of these would meet our needs?

Thanks!