I have used a Swing Away Hotronix since 1997. I've also used a clam when going to shows because it was lightweight and it did well. We worked that clam to death and it's still working for my brother.
So i would say it really depends on "what your use will be".
Last week my swing away fell off the rolling cart it was stationed on while hubby was doing some shirts due to the fact hubby never put the machine back together correctly after a part broke so the top heating part of the press fell down while it was swung out and bame machine hit the floor. But press still works.
I immediately ordered a new Pheonix Phire (as we have been feeling we would have to replace it soon. The fact it hit the floor makes us not want to rely on it solely.
I was in the beginning (thinking about the transition to a clam feeling "i would have swing away withdrawals" since i've used a swing away so long but...
WOW... my productivity soared using it.
Hubby turned on the "swing away" to help me press some
DTG Shirts and i was pressing them so fast on the "Pheonix Phire" due to the "quick release" he didn't get to use the swing away so much when i was printing chest designs.
I do mainly garments and find that this new clam press is working fine for me (a die hard swing away user). The 1 step (shut the clam) vs swing away which requires you to swing out, swing back and bring down the handle is great.
I love my new clam but will use the swing away when i have "items that will not work in the clam" or for a back up press.