I have had cable internet, currently have DSL because that is what is available at my new home. I do know at least in my area that Verizon is having a hard time getting enough techs contracted and trained to do FIOS installs so they are lagging behind, but from the people I have talked to that have it, they love it.
Cable internet is solid, never had issues with mine, although it was expensive as comcast kept raising my rates.
If you complain a little, and reference competition, you can usually get your rates lowered back to the introductory special rates.