I've been to El Salvador for 3 weeks last August and September. I rented a car in San Salvador en traveled around the country en spend a most of the days in El Zonte. I never felt unsave but there are some spots, particularly in San Salvador where you shouldn't go to (and probably will not go to by accident). The country is very beautiful and I really enjoyed my stay. So if you ask me, it's worth it and save enough. If you rent a car, 2,5 weeks will do to see everything. Less could be enough. But if you decide to travel with public transportation you will probably will need about 3 weeks minimum.

El Salvador is pretty cool. the capital is pretty safe, just use common sense like you would in any major american city. the country is pretty small, you can drive from one border to the other in like 4.5 hours. If you stayed like two weeks you could probably see everything you wanted to, spend time at the beach, etc.

I'd love to visit El Salvador! There is a lot of videos on youtube from american and canadian people who moved and stayed there. Search for "Two People in Paradise" channel as example.

"Most visits to El Salvador are trouble free. However, despite the progress made in security, the risk of violent crime remains. El Salvador has until recently had one of the highest crime rates in Latin America so you should take extra care, particularly in downtown San Salvador, on roads outside major towns and cities, and at night. Avoid wearing expensive jewellery or displaying valuable items. Safeguard your passport, mobile phone and cash against pickpockets."