I find it hard to explain really. IMO they are the only units operating on ex-Southern metals which have any character, and I'm making the most of them while it's still possible having been deprived of them when I was younger.
Living on the Southern Network all my life I've travelled on slam door units from when I was a baby. The Slam Door trains have so much character and comfort, and it makes you like them even more when you see what there being replaced with.
Not a fan of the slammers at all. I accept their usefulness and all, but to me they are just another Mk1 coach with a cab and some other junk. Now, a 310/312, that's a different matter (guess I shouldn't say 312 any more, since there are none remaining on this earth, alas :cry: ).
I've travelled on Slammers since I can remember, mainly on trips to Hastings. I've also done quite a few suburban slammers, Slammer Railtours etc. I agree that Slammers are comfortable compared to electrostars, the CIGs being most comfortable.
A lot of the SET Network has been covered on Slammers , especially Faversham, Hastings, Canterbury etc...