I might. I do use the AV powerline things - but I've heard and observed they top out at under 100 Mps,
The number on the box represents the physical layer maximum network speed among all devices on an ideal circuit (this is higher than the usable speed after applying TCP/IP overhead).
On top of that the old AV1 to AV1000 standards usually only had a fast-ethernet port on them anyways, so you would never get more than 100mbit.
You also need to distinguish between the "connection speed" and the actual throughput as measured.
I have used AV, AV2, AV300, AV1000, AV2000, and G.hn Wave 2 over the years. On the same exact set of outlets I went from getting around 25-30mbit on an "80mbit" connection with Homeplug AV (with drops whenever the AC kicked on or someone used the microwave) to being able to max out my 200mbit internet with less than 2ms additional latency over directly connecting to the modem with g.hn wave 2. Transfers between computers directly connected to the adapters could sustain around 600-700mbit UDP or 200-300mbut TCP bi-directional using iperf3 to test. And my circuit is not an ideal circuit (two floors apart, but they are on the same phase)
If you tried it several years ago, go ahead and try again you may be pleasantly surprised.
Try not to mix and match, even when compatible (like AV2 and AV1000) as your network will be slowed down to the lowest common denominator. And if you need to use the outlet to actually power something, buy the version that has an integrated power plug, this allows the unit to better isolate from interference.
The one I linked has gbit ports and integrated power and is one of the best available right now.