I got a review copy from the OP.
My keyword: This keyword has good MS and is not at all in an easy niche. I wanted to test this service and opted for a review copy and was given one, the keyword was stuck at 50-60.
Links Diversity: The OP is true to the word here, I got a good set of diversified links which included web 2.0s, Comment links, High DA profile links and EDU links. Now, I do not know if my keyword movement was due this link building service but it has moved from 50ish to 20ish now, the movement was on 10/03/2018 [May be OP can confirm when he built the links for me]. I checked all links and they are all working, the comments are highly relevant. The content on web 2.0s is spun which is expected. Most of the Web 2.0s are already indexed, 3/5 to be precise.
Communication: I contacted the OP and he was quick to reply. The report had all the info and hence there was no need for me to get back to him.
I would say the package offers a good service for the price. This will surely help you diversify your link profile and get your Offpage SEO going. Do not solely depend on these links but use them for diversification, this is perfect for that.
I would definitely go for a paid package because it seems to have pushed my keyword! [Specultion but who cares!]