It's very unlikely you will achieve anything but blind lines when you join, and in all likelyhood this will continue to be the case for your first 5-6 years in the company. Fully expect to work 3-4 weekends a month, except obviously during months with leave. To add to this you can also expect 2 periods of month long reserve each year. You will join in band 3, with almost all guys on the fleet currently band 2.
Aside the above, I think you will enjoy a variety of destinations.
Good luck.