Definitely worth doing IMO.
We got a second OLEV charger fitted when we got B Class last year. Our first one was for Ampera 16A Type 1 tethered so we got a 32A Type 2 Tethered (for future). We prefer ChargeMaster tethered as look neater and no faff. We paid our spark to split supply and for a new metal CU for the two car chargers as I didn't want 48A going through old CU.
We got a second OLEV charger fitted when we got B Class last year. Our first one was for Ampera 16A Type 1 tethered so we got a 32A Type 2 Tethered (for future). We prefer ChargeMaster tethered as look neater and no faff. We paid our spark to split supply and for a new metal CU for the two car chargers as I didn't want 48A going through old CU.