I had a reservation # roughly around 7500 since early this year. Finally got configuration email from Tesla. Config page worked then stopped and won't work now. Emailed support, days later they say "try chrome, our stuff doesn't work with IE"...ugh, I am using chrome but something in my account won't work. Even though I gave them my account info to check they never did so I'm stuck until they "reset" me somehow.
The bigger issue is on delivery dates. They're forcing me to buy the pricey/fast 90D version if I want early 2016 delivery. If I pick the basic 90D I "might" see it around mid 2016. The one I want is the 70 but if you choose that they say "mid to late 2016".
Well, I can't wait another year for a car. I emailed them about this and they say it's all about streamlining production. Of course, that can't be entirely true because a sport 90D will deliver (potentially) six months sooner than a basic 90D. And I think we all know the 70 battery pack is off the Model S and pops right in. I feel like it's all about forcing me into a 90 battery to get a Model X sooner, nothing more. So much for having a "spot in line"!
Anyhow, as I'm typing this Sarah from Tesla calls (as I mentioned canceling so I guess I got a fast reply this time) and tells me the issue with the config website is likely their servers. Come on now, add another server, you're a tech company! Bottom line, I just canceled my reservation and now wait 10 days or so to get a refund via check.
Almost two years of waiting for nothing at all. Hope things go better for others and hope these aren't all signs of major issues at Tesla. Maybe I'll try again after that Model Y has been released for a year :) Good thing I had a backup car being built from another company that delivers in January.
So, just posting my experience with Tesla...I'm not a hater by any means, but my experience was also not good.