Away from the emotion (pretend Slaf and Demidov were drafted in each other's spot is a good way to keep your sanity) I thought he did his job in the playoffs and am mostly happy with how he played, but of course he didn't break out in any dramatic way which at this point shouldn't be a surprise.
The good news is I don't see the contract being a catastrophe, as I think he's already showing he is a top 6 winger even if not an outstanding one, even if I think Hughes probably could have went the bridge route here. Because if we're being honest here, he's probably not one of the primary core players of the rebuild and it wouldn't surprise me to see him as trade bait sooner rather than later.
On the bright side though he is a good compliment to Suzuki and Caulfield, especially as Demidov is not quite as ready as many of us would have hoped.