The hiring of Trainee EPs in Years 2 and 3 isn't widespread (yet), however much the Soulbury Committee strongly recommend it. Once tax and NI are taken off, the salaried wage and the tax-free bursary aren't too dissimilar. Although, you do accrue an excellent pension if employed. It's important to remember that while bursaried TEPs continue to have some protection (for want of a better word) in terms of reserving and using study leave days and so on, there is a worry that this might be lost (to some extent) if the TEP is an employee. It'll be interesting to see how the next few years pan out as salaried Y2/Y3 placements increase.
The doctorate is three years, full time (including school holidays) - no opportunity for part time training. Also, it is strongly advised that you do not work elsewhere throughout the doctorate (some (most?) universities forbid it), as it is such an intense training programme.
Once qualified, as an LA EP you are likely to have a very varied diary, you'll travel between multiple settings in a day. Consultations, reviews, assessments, training sessions, systemic work, planning meetings, EHCNAs, team meetings, CPD, time dedicated to your specialism, project work... there's a lot to fit into your week but you'll likely be quite autonomous in how you organise your week.
It's a great and fulfilling job
Sadly, many EPs get to the top of their pay scale (which should be a good 15-20% higher than it is now had it kept up with inflation) and realise that they could earn 3x their salary if they went private, so there is a lot of attrition from local authorities. (The unions are still nowhere close to agreeing our Sept 2022 pay increase.) It's just something to bear in mind!