Proper training at recoveries from unusual attitudes is a useful skill to keep up your sleeve if the pilot encounters severe turbulence while in IMC or at night. Most of the current training at flying schools in these manoeuvres is under VMC and full peripheral vision. Obvious flight safety limits to in-flight training mean students may not always receive adequate instruction in extreme attitude recovery techniques.
To some extent this limitation can be overcome by practicing in a synthetic trainer where flight instrument interpretation in extreme attitudes is the key to recovering to level flight in IMC. There may be a difference in recovery loads between a Cessna 150 and a larger twin engine type, but the basic recovery actions in IMC will be similar. It is money well spent.