Alcove or freestanding -- the primary MAAX decision
If your bathroom has an existing three-wall alcove opening, the Cocoon is the MAAX product to evaluate. If you're doing a new master bath or reframing for freestanding installation, the Optik's flat-bottom contemporary design is worth considering against Woodbridge's oval alternatives. Both carry MAAX's limited lifetime warranty.
MAAX vs Kohler in alcove soakers
The MAAX Cocoon (15.5" soaking depth, $420-$620) vs Kohler Underscore RL (17.5" soaking depth, $650-$850): MAAX wins on price by $200-$300 but concedes 2 inches of soaking depth. For the buyer prioritizing value, MAAX is the right call. For the buyer prioritizing maximum soaking depth, Kohler is worth the premium.