Keep in mind that Lotus is a very, very small company by most standards, let alone the standards of the auto industry.
That can be great, like when I have a question and can get through to someone at the factory who actually had a hand in designing the thing and not only knows what he is talking about but is happy to help out. Try that with any other car company, including BMW and Porsche (well maybe Ferrari).
On the other hand it means they don't have anywhere near the polish you may be used to particularly from Honda etc.
Buying and owning a Lotus is an experience much closer to buying a race car than buying just about any other production vehicle. So unless you reset your desires and expectations you are going to be very disappointed.
It isn't that anyone is wrong or right. Lotus is what it is and you either understand and decide the tradeoff are ok with you or you should pass.
This is not to make excuses for Lotus. Perhaps they should just come out and say something like "hey, we're little and this is what it means." It probably would be better for them (everyone in the UK knows what it means and they buy the cars anyway) but I wouldn't hold my breath. But unless you just want to make yourself miserable you should think long and hard about what you are literally buying into and make sure you are ok with it.
The Elise, particularly the S2 is far and away the best built, most reliable car Lotus has every built but compared to almost anything else out there on the road it is still completely unrefined. I would expect the systems behind the car to be similiarly basic.
The people who design, build, sell and service this car are car nuts. They love what they are doing, but they aren't alway focused on creating smooth systems. I have never felt I would be hung out to dry in my dealings with Lotus, but often found myself confronted with the effects of a small organization.
Lotus is more like a bunch of craftsman (think of a guy in Maine who builds you a hand made guitar) rather than a real car company (heaven knows they don't ever turn a profit like one). If you are cool with that, great, but if not there are other options that would be a much better fit.