If they did not work well they would not be on the market.
I am also one who has driven all the colours - some new and some used.
All work well when properly maintained - otherwise they would not be on the market either.
They all break if abused or not maintained.
Bottom line - ask them to bring it out to the farm and use it for a few days - if you are a serious buyer potential, they will do it. Get them to let you put 5-10 ours on it.
I have done this several times in my life.
If they will not do it I would go somewhere else.
As for price - only you can decide that. Someone on these boards will always have a different idea or have received a better deal somewhere in North America. As the buyer set your budget and spend what you believe you can afford. If you have not seen it up close and real you cannot tell for sure the condition. And, you might try a little hard dickering - never know what the bottom line is until you try. The longer it has been on the lot, the more they will want to move it.
Good luck to you.
Best to all
Bez