Last week I switched to the Charter Spectrum suite, which has a new e-mail implementation. It is TERRIBLE. There are numerous known bugs that are not being resolved. First, the contact list allows groups. My groups were converted over to the new system, but they came over UNPOPULATED -- they were empty, without any of the contacts in the groups they were supposed to be in. I called Tech Support and was told I needed manually to repopulate the groups, and that this was a known bug. I asked if they could electronically retrieve my groups, but they could not. I asked for a hard copy of the contacts in each group, but they could not provide that either.
Next, I set about repopulating the contacts. They have a setting controlling how many contacts appear on a page, which is fine. They also have a search mechanism for contacts, which is fine. But the search only searches the page displayed, not the full contact list. So if you're looking for Allan, it will find it on the first page displayed, but it can't find Tom, because he's on page 3. Apparently, this is another known bug.
Then I began looking more carefully at my existing e-mails. They sort in date order, which is fine, although there is no mechanism to select another sort order (as there was in the old system). Further, if you have 150 e-mails and choose to display 50 per page, only the first page sorts correctly. When you pull up the next page, the sort order is random. As with the contacts, the search mechanism works only for the page displayed, not the full list of e-mails.
The speed is remarkably slow, far slower (on the same computer, using the same high-speed access) than the old system.
Lastly, the "Remember me" function to store sign-on information does not work, although it worked fine on the old system.
Also, the display is very unhelpful; it may be esthetically more pleasing, but is far less practically useful; in the old system, you could see 20 - 30 e-mail listings on one page, whereas now you can see only 2 or 3 because of the bulky, multi-line display allotted to each e-mail.
Charter is apparently forcing all users to convert to Spectrum. My advice -- wait until the very last second. This initial app is incredibly BUGGY and utterly unready for production use (in my opinion as a former IT manager -- I would have lost my job if I rolled out a system like this one).