This is an excellent kit but my experience has been painful to say the least. My issues:
1. Instructions are appalling and written in typical Chinese English. As a result, what should have been a relatively easy install took 3 times longer than it should as some things ended up being trial and error. I am mechanically experienced having done much more complicated work.
2. Tech support virtually non existent. Replies are prompt but it is almost like speaking with a BOT:
(i) Asked question regarding how much hydraulic oil the unit takes for a first fill. Tech support responded telling me what type of oil to use. Asked again, pointing out that they had not answered the question asked. Same response. Finally on the third attempt I received an answer telling me that I needed 2L. Ended up only needing 1L.
(ii) Compression fitting snapped during install. Asked tech support of the type and spec /thread count etc. Couldn't give me a reply. Didn't even know which part I was referring to despite a clear explanation. I ran around town going to all specialty hydraulic stores within an hour's drive. Noone could match the part. Ended up heading to marine mechanic and guessed that it was a Seastar copy. Finally received this part at a cost of $47. Two weeks after commissioning and running the boat with new steering , tech support finally replied stating that they would send me replacement fittings. Great that they did this but a frustrating experience. Received new parts 6 weeks after purchase.
So, I'm complaining a bit here as all of the above was avoidable and cost me heaps in terms of time and effort. On the plus side, the unit performs very well -steering has improved considerably. It's not finger touch but it's not far off that either. A very worthy upgrade.