I have a Corbin Solo seat and an Ultimate Mid Rider and am also 5'-9". You won't be able to use the Indian Passenger Pillion with either of these seats. They don't line up and don't have the mounting to receive the connecting tab that holds the Indian seat and pillion together.
Both seats put me up slightly higher to the point where I can't quite flat foot both sides they way I could with the Indian seat. They are also a little wider which probably contributes to that. The Corbin seat sits me back 1.5-2" compared to the stock seat which is actually a big difference. The Ultimate Mid Rider was closer to the stock position but still put me back slightly. This can become an issue if you have shorter arms and you end up having to lean forward to get comfortable. Recently I added Indian 16" Ape Hangers and with them rotated back toward me I can use either seat comfortably.
Quality and comfort on both the Ultimate and my Corbin are very good. Hope that helps.
Both seats put me up slightly higher to the point where I can't quite flat foot both sides they way I could with the Indian seat. They are also a little wider which probably contributes to that. The Corbin seat sits me back 1.5-2" compared to the stock seat which is actually a big difference. The Ultimate Mid Rider was closer to the stock position but still put me back slightly. This can become an issue if you have shorter arms and you end up having to lean forward to get comfortable. Recently I added Indian 16" Ape Hangers and with them rotated back toward me I can use either seat comfortably.
Quality and comfort on both the Ultimate and my Corbin are very good. Hope that helps.