Agreed.
As others have said, he is a handful, and occupies defenders, creating space for our other attacking players whilst carry a scoring threat in his own right.
It might be the case that he is particularly effective as a second half sub when opposition defenders are tiring. This was the case against Dundee (albeit they were also down to 10). He is also decent in the air - something that is handy when defending set pieces.
He took his goals well enough at Dens, and with more game time and a full pre-season with a FT club, there are grounds for optimism.