Polar F6 Was happy with this purchase... see edit at bottom.

I was a bit hesitant to buy this HRM since it was priced high for what I thought I needed. However, after using it for almost a year now, I am glad I did. The chest strap is much more comfortable than the bulky plastic one from my previous HRM and the features of the Polar are nice too. I also think they did a pretty good job on the design of the unit since most look like some sort of Dick Tracy wrist radio and have nerd written all over them (not that I mind being labeled a nerd, but I don't think I need to advertise it). I don't mind wearing this in public at all. Also, the screen is easy to read and most of the information large enough for my waning eyes, which as I get older is important.

One thing I should mention. I changed the batteries on the transmitter strap recently, but I was still getting an intermittent transmission. I went to the Polar site and one of the things they mention is to wash the strap (not the transmitter itself which snaps off) in warm soapy water. I thought I had been washing it enough after use in plain ol' tap water every so often. However, after using warm soapy water, the transmission improved dramatically with no drops at all, just like new.

One last thing... another nice feature is the transmitter strap does send a signal to my Elliptical machine, so I can monitor my workout with the Polar device and the onboard elliptical HRM (nice to compare and they do come close), however my other transmitter straps do not send to the Polar wrist device.

EDIT and UPDATE: My transmitter went and died permanently. I wish I could update my stars. They want $50.00 plus shipping for another transmitter which is just silly since it is obviously a common problem. I went ahead and ordered the top selling Omron HRM (wrist and belt) for around $30. I ended up using the Omron transmitter with the Polar HRM (it looks a bit better) and still have the Omron HRM as backup. I figured even though the Polar transmitter belt is a bit more comfortable, it wasn't worth the extra money to take the chance that it dies again. Polar should be ashamed of themselves. If you don't need the all the extra junk on the Polar, just get the Omron.