I completely agree,
I only use celga and all the possible problems
that could have happened everywhere were solved by
e-mail (ussually it's always a problem with the
seller, not with the deputy service).

Also, with celga you have the possibility of
getting an own YJ account and even they charge
initially an extra fee for auctions won with it
that fee is waived if you pay your invoices in a
timely manner. Also with this kind of account you
don't have to place any kind of deposit in advance
so that means you can think until the very last
second if you want something or not.