Has anyone ordered from BD recently with no customs or delivery issues?

Are there other sites you would suggest?

Seems much cheaper than ordering via bookstores here like Kinokuniya.

Ordered several times from them.  Never a problem.  No duty / VAT on books.  Only issue is the generally longer delivery times (3-4 weeks), never bothered me though.

 

I've lots of books from them and never paid any customs duty.  Some do arrive damaged though and BD has a terrible returns policy.  You have to pay to ship back to them.  After a few books turned up damaged I looked for another supplier.

 

Kinokuniya Thailand provides an excellent service and they have most books that BD has.  Free delivery over 800 baht (I think) and you can buy a membership for 500 baht a year which gives you members prices, usually 10% off).  If you are going to buy a fair number of books it is worth it.  I got my 500 baht back in two orders.  https://th-membership.kinokuniya.com

 

You can also use the card in their physical stores for the discount.  I just took a picture of the card with my phone and showed the cashier the photo.  Never a problem.