Fenix guitars and basses were made by the one of the companies that made the Korean Squier instruments in the early 1990s. Broadly, the quality of the fenix instruments was equivalent to the Squiers at the time and seem to have shared some of the parts.
I've played a Fenix Telecaster since 1993 and the only weak point I've found is that the switches and pots were poor. I would be inclined to put some new tuners on it, a new nut, give it a good clean and play it.
Andy