So imo if you are interested in the gameplay and the serie in general you should give it a chance, but if you said you don't have much time to play, you have to know that xenoblade 1 takes at least 50/60 hours, and if you want to do the 100% then you ll need to play more than 100 hour. Xenoblade 2 instead takes 60/70 hours, the 100% can take more than 200 hours. I think that xenoblade 3 is enjoyable also by those who haven't played the serie, but obviously you ll have a more complete experience if you have played the first 2. So, if you think you have enough time to play them, do it, it's a fantastic serie and imo it has one of the greatest story, lots of locations are fantastic, i liked the gameplay of the 1st and the one of the 2nd is one of the best in any JRPG imo. Hope i was helpful