I've got the G1 and these extra machines really complete the set up. Seems like good quality components. Fair price for essentially 5 different machines in a bunch of compact attachments. Highly recommend

The positive first the leg extension attachment is great, standing raises for my hamstrings and lower back has helped me a lot with pain and weakness. The ok the jammers arms are not perfect for me on my G12. I'm 6.2 and using them for chest movements is awkward, I need to be able to raise them 1 or 2 steps higher using them for row's and shoulders they're a nice strict movement addition.

Leg tool and J arms are a must. The dip bars are a waste if you get the Lat Station. Still giving 5 stars because it's a good value.

This upgrade kit was well thought out and is a great addition to our G3 trainer. The dip bars when not in use can fit on the unit in the back out of the way. The other pieces are a bit large and need to be hung up or placed out of the way when not in use. All pieces are sturdy, easy to put together, and will be a great addition to our workouts!

love everything about this upgrade