I have my X-700 since 1989. Never a problem. The shutter is cloth type, slow X-synchro, but very reliable, less vibration-prone.
It's the VW Beetle of cameras, they sold it in millions, it was built even after Minolta discontinued it (as far as I know, the production line was moved to South Korea, then to China, go by memory). You can find them for cheap because a huge number exists on the market. Don't be fooled by the low price, this is a fine camera.
The camera was built with an attention to cost, so it lacks some features: no mirror lock-up, no double-exposure (people uses the trick of keeping the release button on the bottom of the camera while "winding" the film with the lever which in fact only cocks the shutter, never tried that) and the lightmeter is not "fully coupled" in the viewfinder. When you use it in Manual mode, you see the aperture through the periscope and the LED bar to the right indicates you the suggested shutter speed by the light meter, NOT the actual shutter speed which is set on the camera.
It has exposure lock, self-timer, an indicator of correct film loading. The shutter release is electronic, so the camera only works with batteries. You have a spare battery compartment in the strap. An infra-red remote controller is available, and a multifunction back (for things like date-time, and working also as an intervallometer). You can apply a winder (2 frames/second) and a motor drive (3.5 frames/second).
The shutter release "feels" the electric conductivity of the finger and turns the camera on when you just put your finger on the release. This is just very good, you can keep the camera always "on" while having it on your body, it will go in stand-by after a few seconds and will instantly turn on when you put your finger on the shutter release. You have a separate threaded command for use with the flexible shutter release.
What makes this camera fantastic is the viewfinder, which is IMO just superior to anything else I have used, including Minolta XM and Nikon FE. It really is a pleasure to use. If you can get rid of the prejudice against plastic (which is a prejudice, plastic can be more robust and more reliable, and even more expensive, than metal) this is your camera.
It also has a Program mode (for the rare occurrences when this can be of help, I'm no fan of Program modes). TTL-flash is another useful feature especially if you practice macro photography.
The shutter speed is controlled by a last check during actuation. The camera performs a reading between diaphragm closing and mirror trip. If the diaphragm has a problem (doesn't close fully, or is imprecise) the camera compensates for that because it actually measures the light in stop-down mode before the mirror trip. Very neat.
The focusing screen can be substituted by a technician. The standard one has both microprism crown and stigmometre.
What it lack, it lacks. What it has, is high quality. Cost reduction was performed by stripping unnecessary functions, not by saving on quality. Highly recommended, I say. Plastic is good because weight is bad.