I have the off-ice skates and I really love them. I went onto the ice again yesterday, after not really having ice skated in the last 2 years and only having skated on my off-ice skates for a month, and the transition was really weird, I couldn't skate forwards at all, but after 15 minutes it was great.
I'm still a beginner but the off-ice skates have improved my left crossovers immensely, last time I was on ice I couldn't do them at all, so practicing them off ice has been the thing that's improved them. My forwards crossovers have also improved. But I'm starting skate UK next week and then hopefully I can practice what I learn on my off-ices (because I won't be able to practice at a rink between classes).
I can't say how good they are for spins or jumps, I'm a long way off that. But if you can't get to a rink I would really recommend them. for the past 2 years I've not been able to get to the rink, been unemployed through illness and it costs me over £20 per visit to the rink (and will take at least 3 hours of my day because of travel). So the off-ice skates were only the equivilent of 6 trips to the rink, so really worth it for me and I get to skate several times a week this way. It's also lovely skating in the sunshine! & I get to skate with my friend who has recently bought aggressive inline skates.
My only problems are - they're not comfortable to skate on concrete that's bumpy at all, I can only skate on the skate park which is smooooooth, so if the skate park is busy I can't skate that day (not safe to use around boarders & agg skaters doing the ramps). I've seen some skaters with pic skates skate in car parks and tennis courts but for me it just doesn't seem to work........ but that's not really the skates fault, obviously to replicate the ice is hass to be smooth.
But my biggest problem is although I'm a size 5, I bought skates in a size 5 and they're really loose on my feet. They fit in length so I can't get a 4 (I even wear a size 6 in shoes sometimes so it's not that I'm smaller than a 5), but I think if I was doing advanced moves they might become dangerous because they're not tight enough. I have to wear thick socks which isn't ideal and even then they're loose. I wore my ice skates yesterday, first time in forever, they're risport and I was omg they're so tight!! But that's the proper fit. For people with a wider foot they probably have a good fit, but if you have a narrow/flat foot they might be loose. When I can afford it I want to buy a new risport boot and have it mounted to the off-ice frame.