Upgrade will drop to 3-4 years? Hah! That's what they said when I got hired - and it went UP since then! They've been telling newhires that the entire time since with absolutely nothing on the horizon that'd make upgrade time drop. Increased attrition is the only reason upgrade time isn't going to 8 years by next year (and even then it might).

There are some good reasons to go to Horizon but don't kid yourself that you'll be a captain in anything less than six years. I was there 3.5 yrs and barely half way up the totem pole. I enjoyed my time there - but from a career standpoint it was a complete waste of time.