It is going to feel odd at first (to type on SA).
Prior to the (very recent) surge in popularity of SA, virtually nobody had any typing experience on high-profile spherical keycaps. Their golden age was 40 years ago, and by 1983 they were all but gone from the computing landscape. Most folks have only ever typed on the same old boring cylindrical keycaps that have reigned supreme since the IBM PC (and its clones) took over the industry in the 1980s. Even guys like me, whose first computing experiences were on terminals with spherical keycaps, have long since forgotten what that was like, and jumping on an SA set felt like a new experience more than it felt like nostalgia.
However, the look of a keyboard with SA harkens back to a time when keyboards were engineering marvels made to last, and made out of the best materials available, rather than cheap, disposable commodity items made to accommodate an indifferent (and budget-constrained) general public. If you want your keyboard to look like a timeless, well-made classic, then get an SA set like the ones mentioned in my signature banner and put it on a high-quality (preferably full-size) board. Getting used to typing on them is pretty easy if you give it a little time and don't go into it with a "give me a reason not to hate you, SA" attitude that a lot of folks around here seem to.
