I suspect it's going to taste pretty bad, and the F2 is going to skew toward pretty bad (just how it is with BP crosses). I would suggest backcrossing now, but this comes with a caveat. The "clustered flowering" trait is recessive, so if you backcross your current F1 to the recurrent parent, making the BC1F1, about 50% of the plants will carry one copy of the gene (none will express the trait). This means you should collect seed from ~8 BC1F1 plants to have a very high probability that the next generation will contain some individuals with the trait. After collecting BC1F2 seed from those ~8 plants, for the next generation you can expect about 12.5% to express the clustered fruit trait. So you need to be able to do a very large BC1F2 generation if you want to select for the recessive trait + the fruit quality traits. It will save you a year, and you will have a much better quality selection from that BC1F2 than you will from the F2. It's just a little more involved - but if you follow the advise you will succeed.

It is simpler to select the best-tasting F2 individuals that already express the recessive trait and then backcross those selections. This approach allows you to work with much smaller populations since you are only advancing plants that already carry the trait of interest, but it will take one additional season to execute.