It's pretty good, better than most hand-made TLS/SSL configurations, out of the box.
As you know, TLSproxy.com is dogfooding TLSproxy...
Now according to Qualys SSLLabs server test (screenshot below), TLSproxy gets an
A- grade which is almost perfect... We'll try to fix the forward secrecy problem and avoid using 3DES ciphers.
It will then bring the coveted
A+ rating to your websites with absolutely zero configuration!