Healing on the gamepad and even moreso, the PS3 is do-able.

However, there are some dungeons that may create targeting lag (or other unexpected interface lag) on the PS3. These locations so far include: Castruum with large pulls, Praetorium, Wanderer's Palace with aggressive pulls, and Binding Coil Turn 4 when spiders appear.

During these times, an instant spell (Regen) may sometimes take three to five seconds to execute.

However, these dungeons were tried on a standard PS3 hard drive (5400 rpm) and I've been advised that a faster hard drive may somehow alleviate some of this stress, though it is not known to me how.