Deore is the standard/lowest in the hierarchy I think? So it'll work fine but won't be anything exceptional. Considering the junk bikes I've borrowed that have had V's, if it works and it stops your wheel you're already doing better than 80% of the population.
These any good? Reviews seem decent...
http://www.chainreactioncycles.com/shimano-deore-t610-v-brake/rp-prod107375?gs=1&gclid=CMX1g-nJ9s4CFUsq0wodbjAIwA&gclsrc=aw.ds