I can't speak for the eight track units. But Fostex as a whole I've found to be a very robust mfg. I have previously owned a G16S (the S for S Dolby). An E-(22) the 1/2 tape version of the more common E-2, A 820 mixing board, A 16 channel board, A 2016 line mixer. Synchronizers and controllers. I still have a pair of the 6301B personal monitors.
All I have found to be great stuff. Is there better..yes. Is there worse..absolutely!
I have no reason to believe any of their other products are different. they are affordable and still plentiful. Parts are avail. on ebay too!
but, keep in mind. With a Multi-track tape machine you will need an (interface) otherwise known as a mixer. You wont be able to just plug in your headphones to monitor. And you will need tape, head cleaner, De-magnatizer for the heads, Cable/snake, at least two x8. One going in, and another coming from.
It is a lot of fun tho!
" The Older I Get...The Better I Was!"