Two answers for you OP. Vacations being fun are like whether you consider a cruise boring or fun...it depends on who you travel with. Do you travel with people who ensure a good time? Then you will have a roaring good time almost anywhere you move around together, sightsee together, dine together, etc.
Israel is historical stuff on top of historical stuff, and a pretty intense cultural immersion too. If you want to tromp all over sights and go to museums, you'll likely have a good time. It can be considered a little bit expensive, and extremely safe. Considering everyone has had military training, is armed, you're not going to see as much petty annoying crime you get elsewhere because the level of awareness is so great and pretty much 100% can take down anyone who tries to mess with them. Krav maga! Whheee
To be serious, Ben Yehuda street after the Sabbath is pretty much a party worth seeing. The beaches are lovely. I don't know where you may or may not wish to rent a car or do any actual real touring. It can be a little expensive at times.
You won't really find anywhere in the educated world who don't speak English as well as you do, but there is a good reason to install some apps and some translation programs because Israel is pretty techy and good finds for social and foodie things are online in a major way. Watching the news closely isn't a bad idea either.