abracadabra,
I am not TRSS, but as far as I know, that 35584£ does not include the monthly installments. From TRSS pilots that I know at EZY I came to know that you'll get another 5000£ on top of this tax free. (bonus for company and actually also for TRSS guys). It basically adds up to TRSS guys making about 250£ more/month than non-TRSS guys. But from this salary , they repay a loan which I guess would be around 450£ /month (not sure about this amount though). A non-TRSS guy takes home about 2900£ net/month on about 45 factored sectors. (some bases 2800, others even 3200), so TRSS would be a little less I presume.
TRSS is not such a bad deal in the lowcost business, but if you leave the company, you won't get that 5000£ extra tax break anymore.
Hope this helps