Most insurance companies won't cover an Essential Nails course primarily because you've not gained experience with working on real people.
Perhaps if you only do one, you will not have the full depth of skills that a nail technician needs, but if you do all of the required modules, you will be required to submit evidence that you have worked on real clients. I can say that they are very picky when it comes to the evidence you provide; I had to resubmit several times and Sarah Gooderham who was my marker was rather pedantic.
Currently AFAIK, The Beauty Guild and ABT insure EN courses. The courses done with EN are certificates of achievement (you have achieved at least to NVQ standard) whereas in some well known product training programmes like Gelish, they may award you with a certificate of attendance which are not the same. It is true that EN diplomas does cover what is expected on the NVQ standards and once a student finishes, learning isn't over.
Also, accreditation can simply mean that an insurance company has been paid by the training company to offer insurance to people completing the course. It's not an indication of training quality!
EN does need to pay fees like any other training provider, but there are also expectations that the Guild also demand such as
having a training qualification, have at least 6 months of experience in the field and the course needs to meet the National Occupational Standards which I link them below.
Gti application ->
https://www.beautyguild.com/Training/Accreditation-Application.aspx
NOS standards for nail technician ->
https://www.ukstandards.org.uk/Pages/results.aspx?k=nail technician
It's not an indication of training quality!
Online courses will not suit everyone and some may prefer someone to be with them. You also need to include the fact that training schools can also be out of the reach for certain people like myself as I was actually asking around in private schools in Preston to do a VTCT qualification - I got a telephone interview and I was never contacted again to start in September '15. I also enquired Young nails which I never heard a reply. My initial belief was that since I'm a man, my impression was that I might want to do this just to be in the "quick buck" band wagon. The truth is that I drive my girlfriend nuts as I always talk about nails!
As an independent learner, EN suited my needs as I felt ignored by other training providers.
Due to that the courses are done via correspondence, it all depends how much effort you put into the courses and how much you want to get out of it. I will only say that they did give me the support where I needed it and it was in gel nails - easy to learn, but hard to master.
I was failed once for gel extensions which is the hardest course by far with EN; books can only give you a certain amount of clear information so I had to ask them what was the standard that was expected and they sent me via post a 3D nail with an extension of how they wanted me to do it. So I repeated the module and sent them my evidence and got a credit (which is in between a 60% pass and an 80% distinction). I repeated again following feedback, resubmitted and I got a distinction. They do advise however that once you pass, you should focus on technique. Once you have mastered your technique, you focus on speed and aim to keep it under 1 hour and 30 minutes for a full set of gel nails under salon conditions. Even so, I have read from users in SG who find it hard to do a full set of gel nails in under an hour and 30 minutes.
I have done my courses 3 years ago and IMO, not all was as rosy as they could have been, there were some good aspects, but some areas could improve. If they have followed through, that should reflect on the newer EN graduates feedback.
As they say, the proof is in the pudding -
http://nailmaestro.com