It's not ideal but reasonable. I lived in Campbell and took the VTA for 2 years: http://www.vta.org/routes/rt902 -- it's about 1.25 hours one way. I used the time to catch up on reading.
I'd suggest living somewhere along the green line so you don't have to do any transfers: http://www.vta.org/routes/rt902. Campbell/San Jose are going to be cheaper than Sunnyvale/Mountain View.
You may also consider using the Caltrain instead. It's faster and cleaner. But there are less frequent trains and stops are more spread apart: http://www.caltrain.com/stations/systemmap.html -- the Mtn View station is a main one which most bullet trains stop at. Rent will be cheaper between Redwood City <-> San Bruno and Santa Clara <-> Tamien. Be careful going south of San Jose Diridon though, that's the final stop for many trains.
I'd suggest living somewhere along the green line so you don't have to do any transfers: http://www.vta.org/routes/rt902. Campbell/San Jose are going to be cheaper than Sunnyvale/Mountain View.
You may also consider using the Caltrain instead. It's faster and cleaner. But there are less frequent trains and stops are more spread apart: http://www.caltrain.com/stations/systemmap.html -- the Mtn View station is a main one which most bullet trains stop at. Rent will be cheaper between Redwood City <-> San Bruno and Santa Clara <-> Tamien. Be careful going south of San Jose Diridon though, that's the final stop for many trains.