Pros
The airline is a dream to work with. Great people, awesome pay, easy environment. A great way of reporting a dealing with things such as colleague conflict and passenger complaints. You have the option of joining as a junior, becoming a senior, line trainer, line checker. ground instructor and base chief! If you're nice to Crew Office (hard sometimes), you will get the best roster every, 5 days on, 4 days off! Layovers in Stockholm, Oslo, Copenhagen and sometimes parts of Spain. Enjoy them while you can! Great flight discount, you only pay the tax, however, due to it being budget, you'll be taking your chances getting a seat!
Cons
THE SHORT HAUL AGENCY: Please note if you work for Norwegian Short Haul in LGW, you will legally work for Aeroprofessional. They are terrible to work for. Unorganised, they pick favourites, no communication and are spiteful. Literally everyone in LGW dreads the day they have to contact them (most days tbf). If you're going to work for a brilliant airline like Norwegian, apply for Long Haul, at least then you will work for OSM which is much better in terms of employer.