So far, I have rented a few clubs to see how the clubs some friends are using play, rented the Rocketballz L69+ 3wood to see if the added distance over my R11s would be of benefit (and if the medium loft rather than high would be an issue), and wanted to try the high-price Max Master+ putter.
The Rocketballz is ridiculous. As in fun. I wasted a few hours doing practice rounds just to use the 3w to tee off, and playing RSG and SA to see how it would fare with wind. I could get over 280yds out of it (did so several times), and even got it to short up decently enough. Could not get it to stick like my R11s, but I did not expect it to.
The Max putter... wow. As an absolute die-hard avatar movement + "math in my head" player, this was a tough one. I also prefer to putt by using the shortest, but still accurate, swing, as I have a rough time hitting the ding (finger-brain issue for me), so the shorter return is better for me. With the Rossa, for instance, I will often go to the 90ft for a 10ft putt (first avatar movement). I despise the different number of avatar movements for putters with male versus female avatars. I had to switch to a male avatar for the Max (usually female + Rossa for me), as the female avatar had funky divisions. For me, this putter "rides the rails." The Rossa is beautiful, and I love it. But, the Max feels/seems just a bit more "exact, " more precise, and it held really well over longer distances. I can see the benefits when putting on tournament+ greens, where distance via meter accuracy/precision becomes vital. For me, the only time I dropped below the 30ft was to shoot ~3ft or less (first male av-move for 30ft = 6ft, 40ft=8ft, etc). Love the putter, dislike the female avatar movement divisions, and will likely pass on it for now due to the price (and female avatar movement difference).
Two days is far too little time to truly get a feel for clubs IMO. But, the first impressions I have experienced have been pretty valuable. Regular rental fees are a bit high IMO, and without the ability to apply at least the initial 24hr rental fee toward a purchase of the club (within a certain time frame) makes renting more expensive clubs a no-go for me. The Max putter is not something I would have ever considered renting, but now I am looking at possibly purchasing it when I go TM. Or maybe I will wait for another free rental day/weekend once I am a higher level. Free rental weekend has been a blast!