Reviews for Moshi Mini DisplayPort to HDMI Adapter

I purchased a 10 ft. Mini to HDMI cable awhile ago to watch movies and could not get sound on my Harmon/Kardon system but I did have video. I changed audio settings in the preferences and still no audio. After reading other peoples issues re: no audio, I purchased a Mini DisplayPort to HDMI adaptor then plugged in a HDMI to HDMI cable from the adaptor to my stereo and I now have audio through my stereo system.
I have a MacBook Pro purchased late Oct. 2011

I love this product. Received it ahead of schedule, hooked it up within minutes, turned on my TV, changed the port to dhmi2 (where my computer was connected) then turned on the computer. As soon as I logged in I went right up to the display properties and picked mirror and it switched on immediately. One last step to change the ratio on the tv screen and I was all set. Tried my pandora right away to see if the sound worked and, yes, it did. No need to change anything. I tested Internet, utube, face book, iBooks... Every thing I could thnk of and wow, works great. FYI I have an iMac late 2010. This whole thing took about 15 minutes. The actual hook up only about 5minues. I've been using it off and on through out the day for almost a week now with no glitches. Treat the cables with care,the pins are delicate, and you should have no problem.

Bought it, got it, plugged it in to my less than 1 year old HDTV in the correct HDMI port, plugged it in to my new Macbook Air, nothin. No video, no audio, just doesn't work.

I bought this product and it worked for less than a month. Sometimes it transmitted the picture but no sound but now it's completely broken. I saw these bad reviews too and bought it anyway so THIS IS A WARNING DO NOT BUY IT!!!

Hey I bought this product to connect my mbp to a new tv worked great that day ... i turned everything off to go to sleep woke up next morning and it didn't work... so i went to buy i new one bought it worked great went to sleep and it didn't work again worst product I've bought from apple how can they let products like these enter there shop .. DO NOT BUY!

I bought this from the apple store, thinking that it would be good quality. But I was very wrong! This adaptor's plastic case broke after a month. Now the audio does not work, and very frequently no signal is transmitted. TOTAL waste of money.

Does not work.
Bought one to connect my MBA 11" to a Samsung 40" LCD TV which has multiple HDMI devices connected to it (including apple TV) - so the HDMI inputs do work.
When connected I get no recognition of the TV by the mac, and the TV flashes up occasionally mode not supported - blank screen otherwise.
A search of the internet appears to confirm that even if you can get this item to work - it will only be for a matter of hours or days at best.
Hoping that Apple bring out their own model.

This product worked for the first few months then got worse and worse until it stopped working completely.

DO NOT BUY.

It'll just raise your blood pressure because of the stress it will cause you.

As other reviews have mentioned this adaptor is a terrible design. After 6 months of 1 or twice per week use it sporadically and then totally lost contact. For the almost $40 paid this is extremely disappointing.

I bought this and the first time I used it, I turned my MacBook Air upside down with the lid closed to keep the ventilation open on my couch and it cut out with the slightest touch, sometimes I did not even have to touch it. Once it got started it worked fine, but 67 out of 152 reviews say that it fails after time. It can work from 12 hours to 2.5 years. The Griffin seems most reliable according to reviews.
At this time of writing, here are the failure rates for MiniDisplay Port to HDMI adapters according to Apple reviews:

Moshi -43% (67 out of 152 reviews)
Belkin -31% (10 out of 32 reviews)
Griffin -14% (2 out of 14 reviews)

I hope this was helpful. I am going to exchange my Moshi adapter for a Griffin adapter.