I have dozens of the 2810-24G & 2810-48G they are fine switches for normal use. The do support multicast snooping and the switches can act as the multicast querier.
New and used they have been quite solid, had some in production for 8+ years straight. Well worth the $ if picked up used on ebay.
Only real drawbacks to them:
- God awful java-based web UI debacle. Don't waste your time trying to get java working to use it. The CLI is superior.
- Single non-replaceable power supply
- Limited # of multicast groups it can track (fine for what you are doing I would imagine)
- Limit on number of vlans, you can change (up to 32 or 64? I forget atm) but need to soft-bounce the switch to change it
- The switching fabric resources used for vlan/multicast are shared so you have to trade-off one for the other if you need a lot of MC groups or VLANs
- Sometimes auto-negotiation on port speed will end up with half-duplex connection. Easy to fix by explicitly setting it, but happens more often that it should when connected to colo cisco gear (not exclusive to this switch model or HP even but watch out for it).
- Does not do well with high volume of small packets distributed to many ports on a switch (3-4Gb constant multicast traffic < 1500bytes for example)
Grab the advanced traffic management guide from HP/HPE's site for details on setting up the multicast and vlan etc. If it has gone awol with the HPE conversion let me know I have an older pdf saved somewhere.
The trunking, lacp, stacking etc all have been fine for me in the past. We had the PoE versions running our in-office phones for years as well without problem.