Bubbleworks was classed as decent?
Personally I think this is great, it's painful to see the state the ride is in right now so anything is an improvement in my books. I am sad that they never returned it to its former glory that I remember from childhood, but I'm equally excited to see what they do with it!
As long as it's not another Tomb Blaster...
That's a bit harsh in my opinion.
Bubbleworks will always be compared unfavorably with its Professor Burp legacy and, whilst the ride is a far cry from what's out there, it's a big crowd pleaser and always makes me smile. It would've been very easy for the park to leave it as it is for a while longer (it has one of the highest throughputs on-park and still pulls queues of 45 minutes+). It's not brilliant, but I think it deserves the word "decent".
Having said this, I also welcome the change. Merlin have proved themselves worthy with children's rides and dark rides recently, so I see great potential in the re-theme.