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Yep, thats where I use it. It hangs over the edge, but thats not an issue.
It is quite tall though, so depending on what cup you are using and portafilter, you may have issues.
When used with the standard double spout portafilter, there isn't much room underneath. My flat white cup and espresso cups of choice are fine, but taller ones aren't. It's one of the reasons I'm thinking of going bottomless (oooeeerr).
Exactly the one I'm thinking of buying. You wouldn't know if it fits on the drip tray of a Gaggia Classic by any chance?