I have become a huge sucker for amazing views and vista points, so this place to me was pure awesomeness.
I came here at dusk / night so it was especially pretty & colorful ... and I would recommend coming at this kind of time, but I suppose you can also come during sunrise. I would say that you would probably see the least impressive view during the day ... but that's just me.
This place has amazing photographic opportunities except there are many safety features generally preventing you from getting a very clear shot of anything without a pole, a line, a string or something in the way. They have a variety of "thrill" rides that I didn't care too much for but you may like.
The elevator ride is underwhelming, and the exceedingly long walk from the bottom of the stratosphere to just the entrance to the tower is also suboptimal ... but it's totally worth the hike up for this amazing view down the strip.