Without owning a TiVo yet, that T3 review pretty much sums up my current thoughts.
The perfect PVR is within touching distance, VM just need to sort out the EPG mistakes & give it the ability to update in realtime, red button, Box Office, the catchup issues mentioned in the review & the ability for it to have suggestions recorded in HD when available. Then I believe we'll have the greatest set top box on the planet.