Regen, Is it balanced as a physad power? Options

[Kyuhan]

I found this power on the net, (Here's the link);

Regeneration (5, 7 or 9)
This power functions exactly as detailed in the official material. The first level is the lesser version described for Shapeshifters in their human form in the Shadowrun Companion. The second level is that described for shapeshifters in their animal form in the Shadowrun Companion (shapeshifters can update their human form'' healing capability to this level for a cost of 1.5). The third level is the version found in SR2. Shapeshifters may update their healing abilities for two points, which moves the healing powers of both shapes up one level (the human form healing at the animal rate, the animal form healing at the SR2 rate).. Common geasa include certain types of damage that can't be regenerated (fire or silver being common), or particularly vulnerable places the don't heal well (such as the Achilles tendon or the neck).

Anyhoo, does anyone think this power lacks balance in effectiveness or cost?