to me, it looks ugly when most teams do it. when i watch older programs, it looks to me like twizzles were more smoothly integrated into the choreography before COP. now it's a flash of razzle and dazzle, often with the blade grabbing i despise. i'd probably like it more if there was more variation in what twizzles look like when performed by different teams, by the same team in different programs, and not so much blade grabbing going on. basically it's a choreography killer.
and the tempo for twizzles too--usually the music tempo hasn't picked up that much but the skater is in a dash-like-mad haste to impress the judges, who are required to 'quantify' this, so... yet another break-the-spell aspect to twizzles.