Firstly, note that there are two sections to Mitzpe Hashalom, the cabins and the suites. They are completely different and in different sections of the property. We stayed in one of the suites and didn't go into a cabin.

To get to the suites you walk through some flowered gardens. Our suite was very spacious, with a comfortable king size bed, eating area, and large jacuzzi. There is a deck with 2 deck chairs with a panoramic view over the lake towards Tiberius, and is obviously west facing so in April we had sun from around 11am until sunset. The suites also have large plasma TV's and DVD players. They also have a fridge with water and beer (free) and leave you a small bottle of wine. The breakfasts were more than we could eat. They possibly weren't very imaginative but the food was good regardless. They only make up the room once per day. There is no phone in the room so you need a mobile. There is free internet access.

The place is very tranquil. It is not near any towns and you definitely need a car. There is a restaurant on the property which was OK, but otherwise most of the restaurants require a minimum 20 minute drive. The roads are good but very windy to get up the mountain. This isn't a place you come for nightlife, it is a place to relax and explore northern Israel. Due to the elevation it is also cooler than when you are at lake level.

Price is relative. It is certainly better value than the much more expensive hotels in Tel Aviv where the rooms are a quarter the size. Generally Israel has become more expensive especially for Brits due to the £/Shekel. However I don't think £150ish per night is outrageous for what you get.

To find it on Google maps look for Kfar Haruv, it is next to it, about 100-200 metres south on the road. The restaurants in Northern Israel were good but unsophisticated. If you keep kosher and want something unusual we really liked Makom B'Sejera in Moshav Ilaniya. It is around 40 minutes drive and is expensive but serves game like venison, buffalo, pigeon, pheasant.

I believe that the Peace Vista has both individual cabins and lodge-like accommodations. We were fortunate to be given a cabin, which we would highly recommend. The bathroom (with Jacuzzi tub) was spacious. The kitchenette/dining area was well equipped. The bedroom had ample storage space and comfortable beds. The living room and the front veranda were both comfortable and perfect for relaxing and reading. And the breakfasts!!!! Everything that the other reviewers have said is true. Superb! We did have one dinner in the adjoining restaurant, and found it acceptable but not extraordinary. We were on an all inclusive tour, so can't comment on the value.

We booked the Suite which was a quite spacious room overlooking the beautiful gardens and viewing all the way to the Kinneret (the sea of Galilee). It was quite an expensive affair and we expected a bit more for this price. Basically a good bed would be a start. It is a good size but a better mattress could have made a world of difference to us.
Breakfast was kinda boring compared to the standard Israeli breakfast that we were used to in cheaper hotels... It is clean however we did find hairs in our bed... And some spider web on the ceiling... That's ok - but not really a class hotel level.
Jacuzzi was fantastic and filled quickly. The room was made of stone which probably is great in the summer but was a bit cold for us. When we turned on the heating, it was too hot. Go figure! The room is built under stunning flower beds and we loved it.
It looks like it's ten minutes away from Tiberius however it was a good thirty to forty minutes by car. It's a sharp climb
There's an overpriced restaurant a couple of minutes away from the Suite. There's an Aroma cafe some twenty minutes away.
Recommended for a one night visit and not four nights as we had...

The positives:
Beautiful location, clean, spacious, great walks, privacy, lovely units and quality time spent with our kids.
The negatives:
Only breakfast served and quite expensive for what it is.
However, we had a memorable time there and loved it and I would recommend it highly so long as you are aware of the drawbacks.