Just wanted to share one more positive review of YSH. As I have posted many times on these boards (and others) we have eaten at YSH many times (at least once per trip / an average of 4 trips per year for the past 10 years). The food has always been great, on ocassion the service hasn't quite been what we expected - BUT never bad enough to keep us away. In contrast to what I have read on some posts - I don't believe that YSH has "gone down hill in the past few years."
We just got back from a quick trip yesterday. We finally stayed at AKL - it was very nice. On our first night DD & DS wanted quick food from The Mara. DW & I wanted something more. After debating about Boma & Jiko we decided we would go for the old standby - YSH. We could not have been happier with our decision. I had the filet & garlic-smashed potatoes. DW ordered the huge caesar salad & creamed spinich (ordering this with the though that she would get to assist me eat my steak - wrong!!!). We also had a bottle of delicious Cabernet. The steak was the best I have ever eaten, and I mean the best. Cooked perfectly (medium rare, I hate it when the outside is burnt beyond recognition but the inside is correct - this happens more often than not) it melted in my mouth - knife not required. But the highlight of the evening was our server. Shamir was fantastic - engaging, but not intrusive. Friendly, but not so much that we wondered if he was going to join us. Right on top of everything - before we even realized that we wanted or needed something. We are looking forward to our October visit.