Anyone using a home doppler to hear the heartbeat?

Leah

9+5 and had 2 early scans but my husband couldn't come and he is gutted he missed the heartbeat (after 2 miscarriages and bad news last year this is great news for both of us)

I really want to get one to try at home but read mixed reviews..

Does anyone/has anyone used them and how early?? Xx