Has anyone owned or operated this model pm 152z with 23 kawi? I am very surprised the other day I was at Gravely dealer and the whole machine has NO GREASE ZERK! I asked dealer and he said it was built to cut without greasing maintenace at least 7 years! I am shocked to know this. So , have you cut with this model and how is it? Fill in as much as you can. I found that it is built very sturdy and compact and the price is not bad at all compared to other relevant manufacturers on this range of Z.