What pronunciation guesses are you referring to? I haven't made any that I can recall, especially as my French skills are at best rudimentary. While I have been told by native French speakers that my accent is good, I would only offer pronunciation advice if I had heard the word spoken by a native.
Yes, I am aware that Basque is an isolated language. However, I am unaware as to its structure and provided the fluency information in case there were some very basic constructural parallels that might influence the learning curve. I was looking for the relative scale of difficulty generally applied to learning Basque. (For example, Icelandic is typically considered the most difficult language for non-natives to learn.)
Frankly, while your answers are very informative---your responses sometimes come across as bruque.