Hi suma
Just saw this and since i totally love my CBFM (was in tears when i thought i'd forgotten it in a hotel in France!) I just had to respond.
I've used the smiley face clearblue test pack as well (still sometimes do when i feel like obsessively POAS) and i think what the monitor offers is greater accuracy because it measures both the decline of estrogen and the rise of LH.
I tend to have a very short surge of LH and I'm sure that without the CBFM i would miss my surge...it gets you to test within a window period every morning.
I've had mine for over 18mnths and it's spot-on accuracy gave me 3 bfp's. So well worth the money and there are usually loads available on ebay. A
second-one can easily be re-set.
OK, I'll stop now, i think you get message
let us know if you get one
xxx