I suspect as long as they are optically sound and you are not a pixel peeper you will (like I do) find them relatively good VFM. Question is will they be interesting enough for long term use ? As I look across at my collection of "bargain zoom" of this vintage I see some that are perfectly good but unlikely to see much action. They are much of muchness and don't offer anything that I can't get from other lenses.
I have a few 35-105 zooms I've bought because I'm too cheap to bid high enough on the Pentax 35-105 I really want. All very good but will probably never get used once I accept that buying multiple lenses that are not the Pentax is more expensive than buying one Pentax
Lenses of this ilk need to have something you are really looking for and which is missing in your collection. I'd also add that the longer heavier lenses are harder to work with on smaller bodies. Perhaps it's an age thing (mine) or simply that I'd forgotten the different mindset needed when handling a classic 70-210.
Speaking as someone who has had a bit of bottom feeding streak I'm getting much more selective as my shelves fill up.
