I'm a beginner at alcohol markers, but I really wanted to learn and Ohuhu's are so fun and friendly and a joy to play with. You don't feel guilty when things don't go to plan and you certainly don't feel pressure because of the price point. I was tempted to get the 120 set, but 72 is a LOT of markers. I do wish they had more browns, but the warm greys really bridge that gap.
Compared to say Prismacolor or Copics I would say that these markers don't have as much deep or sharp color as Prismacolor, and can bleed a little more comparatively and the layering can end up with streaking if you're not working efficiently, but the learning curve is really not bad! I feel that compared to compared to Copics they can feel a little less pigmented and the brush size is bigger than the Copic sketch, but I actually enjoy that! The pastels are just so fun to work with and sometimes the lighter colors when wet don't seem to be doing anything, but then they dry and kind of blow your mind! They work so so well with fineliners, paint and other markers. I've fixed streaky markers with a similar Ohuhu and the results made me fall in love. I wish I could take my set of markers every where I go, and am seriously considering getting a travel set of markers. They're a little translucent if I had to say-but layer so beautifully and you can play around with the opacity simply by doing less layers.
If you are thinking about them and keep thinking about them-they're totally worth it. They pay for themselves-no reason to ignore what others say about them-these are really good markers.