I've just had another look at mine and you wont be fitting a small volume drinks bottle without shock clearance.. That would be a neg point for me but not a deal breaker. They should've mounted the fittings on the top tube as that would give you the shock clearance with a small bottle for those...
My medium E2 arrived 24 Sept (UK) after a 12 month order and various delays including Marin confirming a lie on twitter.. Luckily I had another analogue bike I've been riding (Norco Fluid FS 219er) So far I can honestly say it's been worth the wait.. The up hills are now a challenge in the north...
I had the same issue with them.. They literally lied to me via twitter confirming another lie the U.K rep had told my LBS about the delivery date..it didn't inspire me going fwd for customer service with Marin.
I did stick it out and my E2 arrived last week in September and it's been mega so...