If they fit you they are one of the best park boots.
They have a wide forefoot, but a tight heel and a low instep. If you have a very high arch and high instep you may struggle.
Go try some on with a bootfitter and see what he thinks about them on your foot.
Genrally though, try not to get second hand boots unless they are pretty much unused. You only get about 150 days from a liner so if they have done a full season, you may not get that much more out of the liner.