I've only seen QoS once, at the cinema, and thought it was ok. Not great or memorable, but I didn't think it was total crap either. I didn't realize it was shorter, but it makes sense since they barely had a script.
I've avoided seeing too much about Spectre aside from the first teaser ages ago, so it will be nice to watch it fresh. I know it has Batista, and that's about it.