1. yes and yes, no issues getting paid on time, and if they get it wrong, they usually sort it out very quickly.
2. that depends entirely on demand at your chosen base and your position on the MSL.
3. days off are usually given in blocks of 3 or 4 and never less than 2. 2 however is the exception rather than the norm.
4. all very relaxed, common sense approach, training is also relaxed but lacks a little bit of structure, this is being addressed at the moment.