I had two clients that I warmed up "hot rollers" to service over the last few weeks. One needed a formal updo, but she was short on time. The other wanted to re-curl her wig. As much as I really liked the carrying case for the Babyliss Pro hot rollers, they did NOT pack much heat. They underperformed with both clients.
The Helen of Troy rollers are metal, and you almost need a "finger protector" to sustain the heat of the rollers. They curl the hair like a "hot iron." I was too scared to use the Helen of Troy hot rollers on the synthetic blend wig. Hands down, the Helen of Troy hot rollers outperformed the Babyliss Pro hot rollers.
Both rollers are smooth. The Babyliss Pro roller is more hollow, but I believe the plastic does not sustain the heat. Ideally, I think the Helen of Troy metal hot rollers are overkill, and the Babyliss Pro rollers are underachievers. I would love a hot roller set that fall in the middle of these two options. Until then, I will stick with the Helen of Troy as my first choice.