Irrespective of your TT at the time of joining, you will be waiting a minimum of 6-7 years for a chance to upgrade.
Effo rosters just released (late again) and there are some guys flying 100+ hours with max 8-9 days off. Combine that with a combination of day and night flying and we are talking some serious fatigue issues.
The seniority list is disregarded and ad hoc fleet transfer decisions are a common feature of this airline. There is a severe shortage of effoes and two captains flying together is a common occurrence now. As it stands now, there is an exodus of people and they are unable to plug the hole.
Also, expect a three year bond whether type rated or not. This is to prevent people from leaving en masse.
On the plus side Oman is a wonderful place to live if you are an outdoorsy person. Cost of living is reasonable and considering the insane amount of overtime you will be doing the take home pay is quite impressive. The locals are pleasant to deal with and you are more or less welcomed here. Management does have an open door policy and are quite a reasonable bunch.
They are phasing out DEC recruitment (as of now) and are aiming to meet their left seat requirements through internal upgrades. Nevertheless you are looking at a long wait. Also, the failure rate is quite high.
Bottom line is if you need a job this is THE place to be. If you are looking for career progression please be aware of the hidden reality here.
And be prepared to work HARD.