I really like mine for most applications. I bought the Spectra in case it ever had to be used for unpinning our open boat or our Shredder.
When Zoe and I were heading off to the GC we tried out all the throwbags that were in the family stash (That's alot of throwbags). In the end we settled on my Astral 1) we could both throw the bag to its full length. 2) It wasn't going to come out of the bag unexpectantly. (I have a huge fear of rope entrapment)
Downside - it is a bit of mission to get it out of my vest - then out of the bag to throw it quickly. When I raft guide I have a another rope handy to throw if necessary.