At about 35 jumps I bought a sabre 170 as my 1st canopy, been jumping solo 230 and pilot 190 prior to the purchase.
considering weight to surface have a wingloading of 1.16 and it is great to fly. I actually got my A and B license using this canopy. the openings are soft and on heading, however you need to pay a lot of attention to the pack job, in particular to nesting the nose in the pack and making the cocoon. if at this point you loose a bit of focus, you'll be prone to a hard opening.
as to flying the sabre, it is great, still being a rectangular canopy it is really responsive on the controls. I can surely recommend this canopy as a starter for those who are looking for their 1st rig.