I'm with chrisgixer on this - every Stainless I've seen, and I have the pleasure to see many Omegas (and other cars), have been what can only be described as 'corners cut' (or bodged to use gixer's word), and are also tediously noisy. Even those where the owner reckons they are quiet.
Obviously some like the noise - thats personal choice!
Be aware, some of these longlife ones aren't designed properly, just welded up and bolted/bodged on. The one Amigo had on his old MV6 was a real power zapper. But for Amigo, the noise was more important than performance - again, personal choice.
The reason I use Eternal is they are a 'known' - they fit well, they are as quiet as the original GM ones (and certainly quieter than the new GM ones), and do not impact performance (which to me is important). And they are dirt cheap!
I put my money where my mouth is - I have another Eternal sat on my garage floor (still!

) to go on TBE. The Silver Bullet had an Eternal fitted some time back (Tunnie - was it 2.5 or 3.5yrs back - I remember it was between Christmas and New Year, and bloody cold

)