As of August 2015, Pioneer, Senville and Friedrich split air conditioners receive mostly positive online reviews at Amazon.com and AJ Madison. All models average more than 4.5 out of five stars in online retailers' user rating systems.
At Amazon.com, reviewers say that the Pioneer Ductless Wall Mount air conditioner is easy to install and highly effective. The unit also helps keep energy bills low. Positive comments about Senville's SENA-18HF state that the appliance is very efficient and reasonably priced.
Several Friedrich split air conditioners are well-rated at AJ Madision, including models M18YJ, M09CJ and BR1224W3A. Comments mention that the air conditioners mount with ease and function continually in warm climates without difficulty.