Question about Sonos Playbase

I had the base in operation for only 6 months without a sub. I actually found the bass OK for the flat design. At least the bass is better than with the Playbar without the sub. Then I got the sub to go with the Playbase and I haven't regretted it! The sub raises the system to a completely different level in terms of bass. However, it should be said that the potential of the sub cannot really be exploited in a rented flat with corresponding neighbours. If neighbours are not a problem, I would go for the sub. Otherwise, start without a sub and, if necessary, buy one later.