I agree with the fact that STH reels are great for the stillwater situations. I've used an IM Cassete for over 10 years and adaptability of the reel and cassetes is great for the price. No way could I spend the cash for 8 Lampson spools or Loomis spools. I've had to send it in twice for TLC however.
I've used the Cimmaron C-4 pre-98 and never had a problem with it. This year I sold it and my 9-weight IMX and bought some different gear. One reel I picked up was the Reddington Large Arbor for my 7-weight. Pieced it together with a Rio Versi-tip and went hammering on everything I could find in the Bristol Bay drainages. I have no complaints about the reel or the line system. I have more reservations about the reel since the Redingtons aren't time tested yet, but hey, for $160 bucks, it looks and feels great. AND nothing tore it a new butt up to 35 pounds! If you want bulletproof spend $800 on a Charleton.