Budget Travel - ALSA bus in Spain, take earlier bus when pre-booked?

Curious IF I'd be able to go on an earlier bus than the one I booked with ALSA.

Has anyone taken these buses when traveling in Spain? Are they reliable and more or less on time?

--Russ

I cannot speak for these busses in paticular. However I did take many trains in spain, and have been there a few times (even speant a few months there one of those times).

From what I found, nothing was ever on time in Spain.

Just my experience though.

wonderful!